US2809725A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable ratio brake lever
Assignee: ZF Active Safety US Inc
•
Filing: 1953-10-19
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Granted: 1957-10-15
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Expires: 1973-10-19
Abstract
No abstract record available.
Inventors
- 👤 Jr David T Ayers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 01:45
CPC Classifications
B; B60; B60T; B60T13/00; B60T13/10; B60T13/24; B60T13/46; B60T13/52; B60T11/00; B60T11/04; B60T11/08; B60T13/26; B60T13/40; B60T13/44; B60T7/00; B60T7/02; B60T7/04; G; G05; G05G; G05G7/00; G05G7/02; G05G7/04; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18176; Y10T74/20; Y10T74/20528; Y10T74/20558; Y10T74/20576; Y10T74/20636; Y10T74/20666
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR331746A
Cited
US1134685A
Cited
GB278393A
Cited
US2037868A
Cited
US2037869A
Cited
US2005019A
Cited
US2024788A
Cited
US2626065A
Cited
US2755891A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-10-14 | 1961-04-15 | 1961-10-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-14 | 1965-04-15 | 1965-10-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-14 | 1969-04-15 | 1969-10-15 | $7700.00 | Window Closed / Lapsed |