US2933158A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Auxiliary brake for vehicle
Assignee: Individual
•
Filing: 1956-07-23
•
Granted: 1960-04-19
•
Expires: 1976-07-23
Abstract
No abstract record available.
Inventors
- 👤 Howard E Pitts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:52
CPC Classifications
F; F16; F16D; F16D57/00; F16D57/06; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7904; Y10T137/7922; Y10T137/7925
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US721303A
Cited
US1679085A
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US1787796A
Cited
US1821178A
Cited
US1891793A
Cited
FR812657A
Cited
US2179540A
Cited
US2334629A
Cited
US2550405A
Cited
US2723010A
Cited
US2827854A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-19 | 1963-10-19 | 1964-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-19 | 1967-10-19 | 1968-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-19 | 1971-10-19 | 1972-04-19 | $7700.00 | Window Closed / Lapsed |