US2924205A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Exhaust brake system
Assignee: POWER BRAKE EQUIPMENT CO
•
Filing: 1956-09-24
•
Granted: 1960-02-09
•
Expires: 1976-09-24
Abstract
No abstract record available.
Inventors
- 👤 Norman C Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:26
CPC Classifications
F; F02; F02D; F02D9/00; F02D9/04; F02D9/06; Y; Y10; Y10T; Y10T137/00; Y10T137/0971
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1222985A
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US1508464A
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US1890790A
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US2334857A
Cited
US2517501A
Cited
US2527354A
Cited
US2637332A
Cited
US2753148A
Cited
US2744510A
Cited
US2730090A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-02-08 | 1963-08-10 | 1964-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-02-08 | 1967-08-10 | 1968-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-02-08 | 1971-08-10 | 1972-02-09 | $7700.00 | Window Closed / Lapsed |