Patent US2912265A successfully refreshed from Google Patents.
US2912265A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Free floating double end annular seal
Assignee: Individual
•
Filing: 1957-01-23
•
Granted: 1959-11-10
•
Expires: 1977-01-23
Abstract
No abstract record available.
Inventors
- 👤 Brummer Olin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:55
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/34; F16J15/36; F16J15/3464; F16J15/348; F16J15/3484
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1544609A
Cited
US1956336A
Cited
US2277771A
Cited
US2287207A
Cited
US2586739A
Cited
US2851291A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-09 | 1963-05-11 | 1963-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-09 | 1967-05-11 | 1967-11-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-09 | 1971-05-11 | 1971-11-10 | $7700.00 | Window Closed / Lapsed |