US3070378A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anti-friction rotary seal
Assignee: Individual
•
Filing: 1960-10-14
•
Granted: 1962-12-25
•
Expires: 1980-10-14
Abstract
No abstract record available.
Inventors
- 👤 Thomas B Bojako
- 👤 Chester K Zell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:46
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/16; F16J15/34; F16J15/3464
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1926006A
Cited
US2049955A
Cited
US2220771A
Cited
US2233557A
Cited
US2215034A
Cited
US2516191A
Cited
US2419588A
Cited
US2844393A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-12-24 | 1966-06-25 | 1966-12-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-24 | 1970-06-25 | 1970-12-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-24 | 1974-06-25 | 1974-12-25 | $7700.00 | Window Closed / Lapsed |