Patent US3185488A successfully refreshed from Google Patents.
US3185488A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Face seal
Assignee: Federal Mogul Bower Bearings Inc
•
Filing: 1961-11-06
•
Granted: 1965-05-25
•
Expires: 1981-11-06
Abstract
No abstract record available.
Inventors
- 👤 Dan A Christensen
- 👤 John H Bradfute
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:06
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/34; F16J15/36; B; B62; B62D; B62D55/00; B62D55/08; B62D55/088; B62D55/0887; F16J15/3436; F16J15/3456; Y; Y10; Y10S; Y10S277/00; Y10S277/922
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2289274A
Cited
US2352784A
Cited
DE879496C
Cited
US2584679A
Cited
US2608425A
Cited
US2740648A
Cited
GB722970A
Cited
US2881014A
Cited
US2916313A
Cited
US2911840A
Cited
GB858805A
Cited
US2985475A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-05-24 | 1968-11-23 | 1969-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-24 | 1972-11-23 | 1973-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-24 | 1976-11-23 | 1977-05-25 | $7700.00 | Window Closed / Lapsed |