US2772034A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pump shaft seal for hand oilers
Assignee: Eagle Manufacturing Co
•
Filing: 1953-08-06
•
Granted: 1956-11-27
•
Expires: 1973-08-06
Abstract
No abstract record available.
Inventors
- 👤 Jr Roy H Richmond
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 23:42
CPC Classifications
F; F16; F16N; F16N3/00; F16N3/02; F16N3/04; F16N3/08; Y; Y10; Y10S; Y10S285/00; Y10S285/921; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49863; Y10T29/4987; Y10T29/49872
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2277637A
Cited
US2390928A
Cited
US2529486A
Cited
US2592949A
Cited
US2647774A
Cited
US2693899A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-11-27 | 1960-05-28 | 1960-11-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-27 | 1964-05-28 | 1964-11-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-27 | 1968-05-28 | 1968-11-27 | $7700.00 | Window Closed / Lapsed |