US2547185A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shaft seal
Assignee: YUBA Manufacturing Co
•
Filing: 1947-05-27
•
Granted: 1951-04-03
•
Expires: 1967-05-27
Abstract
No abstract record available.
Inventors
- 👤 Bolhar Edgar Von
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:55
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/34; F16J15/3436; F16J15/3456
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR462424A
Cited
US1931733A
Cited
US2039009A
Cited
US2173075A
Cited
US2210823A
Cited
US2367403A
Cited
US2415888A
Cited
US2373443A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-04-02 | 1954-10-02 | 1955-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-02 | 1958-10-02 | 1959-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-02 | 1962-10-02 | 1963-04-03 | $7700.00 | Window Closed / Lapsed |