Patent US1945894A successfully refreshed from Google Patents.
Patent US2966376A successfully refreshed from Google Patents.
US2966376A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shaft seal assembly
Assignee: Chicago Rawhide Manufacturing Co Inc
•
Filing: 1958-04-30
•
Granted: 1960-12-27
•
Expires: 1978-04-30
Abstract
No abstract record available.
Inventors
- 👤 Percival L Reynolds
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:39
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/002
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USRE23894E
Cited
US1725593A
Cited
US2368137A
Cited
US2644701A
Cited
US2768849A
Cited
US2695801A
Cited
US2833577A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-27 | 1964-06-27 | 1964-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-27 | 1968-06-27 | 1968-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-27 | 1972-06-27 | 1972-12-27 | $7700.00 | Window Closed / Lapsed |