US2621092A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Piston
Assignee: CLARK S NON BLOW BY PISTONS IN
•
Filing: 1946-02-26
•
Granted: 1952-12-09
•
Expires: 1966-02-26
Abstract
No abstract record available.
Inventors
- 👤 Katie S Clark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 10:00
CPC Classifications
F; F16; F16J; F16J9/00
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
DE487709C
Cited
US1394898A
Cited
US1518986A
Cited
US1554475A
Cited
US1830937A
Cited
USRE18144E
Cited
US1781183A
Cited
DE525968C
Cited
US1999233A
Cited
US2056079A
Cited
US2213884A
Cited
US2321791A
Cited
US2395847A
Cited
US2384305A
Cited
US2396084A
Cited
US2394408A
Cited
US2388363A
Cited
US2415984A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-09 | 1956-06-09 | 1956-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-09 | 1960-06-09 | 1960-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-09 | 1964-06-09 | 1964-12-09 | $7700.00 | Window Closed / Lapsed |