US2847236A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wear compensating shaft seal
Assignee: FLEXIBLE SEARL Co
•
Filing: 1954-11-05
•
Granted: 1958-08-12
•
Expires: 1974-11-05
Abstract
No abstract record available.
Inventors
- 👤 John M Lazar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:43
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/26; F16J15/18; F16J15/20; Y; Y10; Y10S; Y10S277/00; Y10S277/935; Y10S277/944; Y10S277/945; Y10S277/946
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US234326A
Cited
US494817A
Cited
US846746A
Cited
US1506420A
Cited
US2245106A
Cited
US2467312A
Cited
US2670973A
Cited
US2745687A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-08-11 | 1962-02-10 | 1962-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-08-11 | 1966-02-10 | 1966-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-08-11 | 1970-02-10 | 1970-08-12 | $7700.00 | Window Closed / Lapsed |