Stewart John L
USPTO Trademark & Patent Filings
Trademark applications and grants for Stewart John L. Stewart John L has 3 trademark applications. The latest application filed is for "HARDLESS SOFTWARE"
- Company Aliases
- STEWART, JOHN L.
- Stewart; John L.
- l john stewart
- Stewart; John L. - Eugene OR
- Stewart; John L. - Murrysville PA
- Stewart; John L. - Apollo PA
Trademarks Patents
| Patent Application | Date |
|---|---|
| Parallel port pass-through digital to analog converter 4,812,847 - 07/104,196 Stewart , et al. March 14, 1 | 1989-03-14 |
| Packaged add-on multiple glazing units and method 3,928,953 - 05/454,210 Mazzoni , et al. December 30, 1 | 1975-12-30 |
| MULTIPLE-GLAZED BREATHER WINDOWS 3,771,276 - 05/271,889 Stewart , et al. November 13, 1 | 1973-11-13 |
| ELECTRICALLY HEATED MULTIPLE GLAZED WINDOW HAVING AN IRIDESCENCE MASKING FILM 3,710,074 - 05/079,076 Stewart January 9, 1 | 1973-01-09 |
| METHOD FOR PURGING AND FILLING MULTIPLE GLAZED UNITS 3,683,974 - 05/079,077 Stewart , et al. August 15, 1 | 1972-08-15 |
Mark Image Registration | Serial | Trademark Application Date |
|---|---|
"HARDLESS SOFTWARE" 1935520 74606351 |
HARDLESS SOFTWARE 1994-12-02 |
"THRIFTY TALKER" 1937167 74606508 |
THRIFTY TALKER 1994-12-02 |
"COVOX CO." 1212392 73304269 |
COVOX CO. 1981-04-06 |
uspto.report is an independent third-party trademark research tool that is not affiliated, endorsed, or sponsored by the United States Patent and Trademark Office (USPTO) or any other governmental organization. The information provided by uspto.report is based on publicly available data at the time of writing and is intended for informational purposes only.
While we strive to provide accurate and up-to-date information, we do not guarantee the accuracy, completeness, reliability, or suitability of the information displayed on this site. The use of this site is at your own risk. Any reliance you place on such information is therefore strictly at your own risk.
All official trademark data, including owner information, should be verified by visiting the official USPTO website at www.uspto.gov. This site is not intended to replace professional legal advice and should not be used as a substitute for consulting with a legal professional who is knowledgeable about trademark law.
| 