Patent US4352548A successfully refreshed from Google Patents.
Patent US2522835A successfully refreshed from Google Patents.
US2522835A
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US
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Brake holding device
Assignee: Old Carco LLC
•
Filing: 1947-11-15
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Granted: 1950-09-19
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Expires: 1967-11-15
Abstract
No abstract record available.
Inventors
- 👤 Robert L Mayrath
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:58
CPC Classifications
B; B60; B60T; B60T11/00; B60T11/10; B60T11/103; B60T11/105; Y; Y10; Y10S; Y10S188/00; Y10S188/02
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-09-18 | 1954-03-20 | 1954-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-09-18 | 1958-03-20 | 1958-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-09-18 | 1962-03-20 | 1962-09-19 | $7700.00 | Window Closed / Lapsed |