US2920452A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Booster device
Assignee: ZF Active Safety US Inc
•
Filing: 1953-09-08
•
Granted: 1960-01-12
•
Expires: 1973-09-08
Abstract
No abstract record available.
Inventors
- 👤 Darwin A Wasmer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:02
CPC Classifications
B; B60; B60T; B60T13/00; B60T13/10; B60T13/24; B60T13/241; B60T13/242; B60T13/244
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1620513A
Cited
US2260491A
Cited
US2365471A
Cited
US2374545A
Cited
US2532960A
Cited
US2475105A
Cited
US2685170A
Cited
US2763989A
Cited
US2690740A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-11 | 1963-07-13 | 1964-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-11 | 1967-07-13 | 1968-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-11 | 1971-07-13 | 1972-01-12 | $7700.00 | Window Closed / Lapsed |