Hart; Cullen P.
Patent Applications and Registrations
Patent applications and USPTO patent grants for Hart; Cullen P..The latest application filed is for "frictionally driven belted work machine".
- Hart; Cullen P. - Surprise IL
- Hart; Cullen P. - Peoria IL
- Hart; Cullen P. - Decatur IL
| Patent | Date |
|---|---|
| Frictionally driven belted work machine Grant RE38,858 - Grawey , et al. November 1, 2 | 2005-11-01 |
| Frictionally driven belted work vehicle Grant RE37,174 - Grawey , et al. May 15, 2 | 2001-05-15 |
| Frictionally driven belted work vehicle Grant 5,363,936 - Grawey , et al. November 15, 1 | 1994-11-15 |
| Frictionally driven belted work vehicle Grant 5,279,378 - Grawey , et al. January 18, 1 | 1994-01-18 |
| Endless belt for a belted vehicle Grant D309,314 - Grawey , et al. July 17, 1 | 1990-07-17 |
| Endless belt for a track vehicle Grant D302,017 - Grawey , et al. July 4, 1 | 1989-07-04 |
| Idler wheel for a track vehicle Grant D298,632 - Grawey , et al. November 22, 1 | 1988-11-22 |
| Driver wheel for a track vehicle Grant D298,540 - Grawey , et al. November 15, 1 | 1988-11-15 |
| Vehicle suspension system Grant 4,411,447 - Hart October 25, 1 | 1983-10-25 |
| Tire cooling system and method Grant 4,343,338 - Hart August 10, 1 | 1982-08-10 |
| Vehicle suspension system Grant 4,230,341 - Hart , et al. October 28, 1 | 1980-10-28 |
| Suspension and drive for tandem wheel vehicle Grant 4,186,815 - Hart February 5, 1 | 1980-02-05 |
| Motor grader roadwheel arrangement Grant 4,186,814 - Hart February 5, 1 | 1980-02-05 |
| Tandem roadwheel leveling system for construction vehicles Grant 4,090,723 - Hart May 23, 1 | 1978-05-23 |
| Constant pressure sealed fluid storage tank for hydraulic systems Grant 4,052,852 - Hart October 11, 1 | 1977-10-11 |
| Steering System For Vehicles Grant 3,783,966 - Campbell , et al. January 8, 1 | 1974-01-08 |
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