Hillstrom; David U.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Hillstrom; David U..The latest application filed is for "sign stand with rolling base".
Company Profile
0.36.13
- Hillstrom; David U. - Novi MI
- Hillstrom; David U. - Hancock MI
- Hillstrom; David U. - Calumet MI
- Hillstrom; David U - Novi MI
- Hillstrom; David U. - Gilber MI
- Hillstrom; David U. - Detroit MI
Patent Activity
| Patent | Date |
|---|---|
| Sign stand with rolling base Grant 8,104,205 - Hillstrom , et al. January 31, 2 | 2012-01-31 |
| Sign Stand With Rolling Base App 20110197482 - Hillstrom; David U. ; et al. | 2011-08-18 |
| Sign stand with rolling base Grant 7,996,980 - Hillstrom , et al. August 16, 2 | 2011-08-16 |
| Sign stand with rolling base Grant 7,941,951 - Hillstrom , et al. May 17, 2 | 2011-05-17 |
| Flexible sign mount Grant 7,698,843 - Hillstrom , et al. April 20, 2 | 2010-04-20 |
| Sign Stand With Rolling Base App 20090320266 - Hillstrom; David U. ; et al. | 2009-12-31 |
| Sign Stand With Rolling Base App 20090320341 - Hillstrom; David U. ; et al. | 2009-12-31 |
| Universally Mountable Bollard Bracket App 20090230266 - Hillstrom; David U. ; et al. | 2009-09-17 |
| Sign stand with rolling base Grant 7,584,563 - Hillstrom , et al. September 8, 2 | 2009-09-08 |
| Sliding Bollard Bracket Mount App 20090084919 - Hillstrom; David U. ; et al. | 2009-04-02 |
| Portable sign stand with sign release mechanism Grant 7,458,554 - Levin , et al. December 2, 2 | 2008-12-02 |
| Menu board assembly App 20080236005 - Isayev; Igor ; et al. | 2008-10-02 |
| Flexible Sign Mount App 20070214693 - Hillstrom; David U. ; et al. | 2007-09-20 |
| Outdoor menu display device Grant 7,174,663 - Hillstrom February 13, 2 | 2007-02-13 |
| Sign stand with rolling base App 20060117624 - Hillstrom; David U. ; et al. | 2006-06-08 |
| Outdoor menu display device App 20050229453 - Hillstrom, David U. | 2005-10-20 |
| Wind resistant sign App 20050076552 - Tolna, Stefan N. ; et al. | 2005-04-14 |
| Menu display device Grant 6,843,011 - Hillstrom January 18, 2 | 2005-01-18 |
| Portable sign stand with leg release mechanism Grant 6,755,381 - Levin , et al. June 29, 2 | 2004-06-29 |
| Outdoor menu display device App 20040045200 - Hillstrom, David U. | 2004-03-11 |
| Outdoor menu display device Grant 6,631,576 - Hillstrom October 14, 2 | 2003-10-14 |
| Fold-up sign panel assembly Grant 6,606,809 - Hillstrom , et al. August 19, 2 | 2003-08-19 |
| Portable sign stand having frangible post Grant 6,560,906 - Hillstrom May 13, 2 | 2003-05-13 |
| Fold-up sign panel assembly App 20030033743 - Hillstrom, David U. ; et al. | 2003-02-20 |
| Outdoor menu display device App 20010032404 - Hillstrom, David U. | 2001-10-25 |
| Outdoor menu display device Grant 6,125,565 - Hillstrom October 3, 2 | 2000-10-03 |
| Sign stand for flexible traffic control signage Grant 6,056,250 - Hillstrom , et al. May 2, 2 | 2000-05-02 |
| Sign stand with cam release assembly Grant 6,032,908 - Hillstrom , et al. March 7, 2 | 2000-03-07 |
| Portable collapsible sign and stand Grant 5,829,178 - Hillstrom November 3, 1 | 1998-11-03 |
| Poster frame with moisture seal Grant 5,815,971 - Rothe , et al. October 6, 1 | 1998-10-06 |
| Sign stand with rolling base Grant D392,686 - Sarkisian , et al. March 24, 1 | 1998-03-24 |
| Universal flexible sign mounting device Grant 5,725,186 - Hillstrom , et al. March 10, 1 | 1998-03-10 |
| Illuminated sign with patterned openings on light dispersion member Grant 5,537,302 - Hillstrom , et al. July 16, 1 | 1996-07-16 |
| Poster and sign display assembly Grant 5,442,871 - Sarkisian , et al. August 22, 1 | 1995-08-22 |
| Wall mounted sign frame Grant D360,078 - Sarkisian , et al. July 11, 1 | 1995-07-11 |
| Pole banner system Grant 5,428,913 - Hillstrom July 4, 1 | 1995-07-04 |
| Illuminated canopy system Grant 5,381,324 - Hillstrom , et al. January 10, 1 | 1995-01-10 |
| Free standing sign stand Grant D351,863 - Sarkisian , et al. October 25, 1 | 1994-10-25 |
| Poster display device with longitudinal retention of frame sections Grant 4,937,959 - Palmer , et al. July 3, 1 | 1990-07-03 |
| Display retention and tensioning frame Grant 4,756,107 - Hillstrom July 12, 1 | 1988-07-12 |
| Ground access elevated pole banner Grant 4,730,803 - Hillstrom March 15, 1 | 1988-03-15 |
| Sign and sign stand Grant 4,691,892 - Grewe , et al. * September 8, 1 | 1987-09-08 |
| Universal mounting bracket for gas pump toppers Grant 4,592,530 - Seely , et al. June 3, 1 | 1986-06-03 |
| Sign bracket Grant 4,433,935 - Main , et al. February 28, 1 | 1984-02-28 |
| Poster display device Grant 4,145,828 - Hillstrom March 27, 1 | 1979-03-27 |
| Display holder Grant 4,138,787 - Sarkisian , et al. February 13, 1 | 1979-02-13 |
| Panel framing device and method Grant 4,040,223 - Hillstrom August 9, 1 | 1977-08-09 |
| Mounting bracket coil spring Grant 4,033,536 - Hillstrom July 5, 1 | 1977-07-05 |
| Display Frame Having Adjustable Hanging Clip Grant 3,552,708 - Hillstrom January 5, 1 | 1971-01-05 |
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