US2670976A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible joint and sealing element therefor
Assignee: Individual
•
Filing: 1950-05-11
•
Granted: 1954-03-02
•
Expires: 1970-05-11
Abstract
No abstract record available.
Inventors
- 👤 Frank M Owen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 16:36
CPC Classifications
F; F16; F16L; F16L5/00; F16L5/02; F16L5/10; F16J; F16J15/00; F16J15/16; F16J15/32; F16J15/3204
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1419548A
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US704425A
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US2097571A
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US2099722A
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US2170915A
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US2252240A
Cited
US2459005A
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US2529098A
Cited
US2620206A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-03-01 | 1957-08-31 | 1958-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-03-01 | 1961-08-31 | 1962-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-03-01 | 1965-08-31 | 1966-03-02 | $7700.00 | Window Closed / Lapsed |