Patent US2497704A successfully refreshed from Google Patents.
US2497704A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-contained seal
Assignee: Crane Packing Co
•
Filing: 1945-01-17
•
Granted: 1950-02-14
•
Expires: 1965-01-17
Abstract
No abstract record available.
Inventors
- 👤 Charles F Voytech
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:33
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/34; F16J15/36
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2076716A
Cited
US2311494A
Cited
US2322835A
Cited
US2347118A
Cited
US2385420A
Cited
US2377452A
Cited
US2382960A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-13 | 1953-08-15 | 1954-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-13 | 1957-08-15 | 1958-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-13 | 1961-08-15 | 1962-02-14 | $7700.00 | Window Closed / Lapsed |