US2500502A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Master cylinder
Assignee: Wingfoot Corp
•
Filing: 1946-01-12
•
Granted: 1950-03-14
•
Expires: 1966-01-12
Abstract
No abstract record available.
Inventors
- 👤 Raymond H Vogel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:04
CPC Classifications
B; B60; B60T; B60T11/00; B60T11/10; B60T11/16; B60T11/22; F; F16; F16J; F16J15/00; F16J15/16; F16J15/164
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US478089A
Cited
US1254024A
Cited
US2018325A
Cited
US2120073A
Cited
US2229519A
Cited
US2352920A
Cited
US2404547A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-03-13 | 1953-09-12 | 1954-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-03-13 | 1957-09-12 | 1958-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-03-13 | 1961-09-12 | 1962-03-14 | $7700.00 | Window Closed / Lapsed |