US2487512A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cylinder and cylinder head construction
Assignee: Automotive & Aircraft Hydrauli
•
Filing: 1946-01-10
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Granted: 1949-11-08
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Expires: 1966-01-10
Abstract
No abstract record available.
Inventors
- 👤 Berger Alexander
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:48
CPC Classifications
F; F16; F16J; F16J10/00; F16J10/02; F15; F15B; F15B15/00; F15B15/08; F15B15/14; F15B15/1423; F15B15/1438; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49908; Y10T29/49915; Y10T29/49917; Y10T29/49925; Y10T29/49927
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR548527A
Cited
US1719153A
Cited
US1875068A
Cited
US2011304A
Cited
US2062216A
Cited
US2254005A
Cited
US2388300A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-11-07 | 1953-05-09 | 1953-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-11-07 | 1957-05-09 | 1957-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-11-07 | 1961-05-09 | 1961-11-08 | $7700.00 | Window Closed / Lapsed |