Patent US2643138A successfully refreshed from Google Patents.
US2643138A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pivoted detent pipe coupling
Assignee: Pacific Pipe Co
•
Filing: 1949-03-03
•
Granted: 1953-06-23
•
Expires: 1969-03-03
Abstract
No abstract record available.
Inventors
- 👤 Jacobs Mayhelt
- 👤 Peter F Dragon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:41
CPC Classifications
F; F16; F16L; F16L37/00; F16L37/08; F16L37/12; F16L37/16; F16L27/00; F16L27/12; F16L27/127; F16L27/1273
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US406964A
Cited
US996079A
Cited
US1148913A
Cited
US1178348A
Cited
US1793015A
Cited
US1941856A
Cited
US2182797A
Cited
US2219162A
Cited
US2281633A
Cited
US2449735A
Cited
US2494854A
Cited
US2494855A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-22 | 1956-12-22 | 1957-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-22 | 1960-12-22 | 1961-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-22 | 1964-12-22 | 1965-06-23 | $7700.00 | Window Closed / Lapsed |