US2747593A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve mechanism
Assignee: Motors Liquidation Co
•
Filing: 1952-07-03
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Granted: 1956-05-29
•
Expires: 1972-07-03
Abstract
No abstract record available.
Inventors
- 👤 Darrell E Royer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:46
CPC Classifications
F; F15; F15B; F15B13/00; F15B13/02; B; B64; B64C; B64C11/00; B64C11/30; B64C11/38; B64C11/42; F16; F16K; F16K11/00; F16K11/02; F16K11/08; F16K11/085; Y; Y10; Y10T; Y10T137/00; Y10T137/0753; Y10T137/0923; Y10T137/8593; Y10T137/85978; Y10T137/85986; Y10T137/86493; Y10T137/86501; Y10T137/86509; Y10T137/86517; Y10T137/86533; Y10T137/86541
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1608120A
Cited
US1710163A
Cited
US1845136A
Cited
US2235793A
Cited
US2239098A
Cited
US2364119A
Cited
US2427859A
Cited
US2570557A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-29 | 1959-11-28 | 1960-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-29 | 1963-11-28 | 1964-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-29 | 1967-11-28 | 1968-05-29 | $7700.00 | Window Closed / Lapsed |