US2834436A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic brake applicator
Assignee: Individual
•
Filing: 1955-11-21
•
Granted: 1958-05-13
•
Expires: 1975-11-21
Abstract
No abstract record available.
Inventors
- 👤 Berryman O Davids
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:15
CPC Classifications
B; B60; B60T; B60T7/00; B60T7/12; B60T7/20; B60T11/00; B60T11/10; B60T11/107
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1315570A
Cited
US2149189A
Cited
US2162029A
Cited
US2261220A
Cited
US2401084A
Cited
US2476003A
Cited
US2625243A
Cited
US2630888A
Cited
GB714400A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-12 | 1961-11-11 | 1962-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-12 | 1965-11-11 | 1966-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-12 | 1969-11-11 | 1970-05-13 | $7700.00 | Window Closed / Lapsed |