Patent US2919146A successfully refreshed from Google Patents.
US2919146A
Expired / Lapsed
US
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Pipe coupling
Assignee: Individual
•
Filing: 1957-04-18
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Granted: 1959-12-29
•
Expires: 1977-04-18
Abstract
No abstract record available.
Inventors
- 👤 John B Gill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:58
CPC Classifications
F; F16; F16L; F16L29/00; F16L29/02; F16L37/00; F16L37/24; F16L37/244; F16L37/252
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US913949A
Cited
US1968421A
Cited
US2034933A
Cited
US2121244A
Cited
US2327611A
Cited
US2730382A
Cited
US2790572A
Cited
US2829907A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-12-28 | 1963-06-29 | 1963-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-28 | 1967-06-29 | 1967-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-28 | 1971-06-29 | 1971-12-29 | $7700.00 | Window Closed / Lapsed |