US3510146A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vehicle tow bar
Assignee: EDWARD R HARTMAN
•
Filing: 1968-03-06
•
Granted: 1970-05-05
•
Expires: 1988-03-06
Abstract
No abstract record available.
Inventors
- 👤 Edward R Hartman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 09:00
CPC Classifications
B; B60; B60D; B60D1/00; B60D1/14; B60D1/167; B60D1/01; B60D1/06; B60D1/143; B60D3/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US994374A
Cited
US1476638A
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US2444086A
Cited
US2553229A
Cited
US2524669A
Cited
US2918310A
Cited
US3154204A
Cited
US3281162A
Cited
US3410579A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-05-04 | 1973-11-03 | 1974-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-05-04 | 1977-11-03 | 1978-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-05-04 | 1981-11-03 | 1982-05-05 | $7700.00 | Window Closed / Lapsed |