US2899217A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pipe coupling device with pressure acitvated pipe gripping means
Assignee: HENRY T CHAMBERLAIN
•
Filing: 1954-12-31
•
Granted: 1959-08-11
•
Expires: 1974-12-31
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:56
CPC Classifications
F; F16; F16L; F16L37/00; F16L37/08; F16L37/084; F16L37/092; F16L37/0925; F16L33/00; F16L33/32; F16L37/0926
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2047569A
Cited
US2017994A
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US2184376A
Cited
US2384360A
Cited
US2387410A
Cited
US2449795A
Cited
US2508914A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-10 | 1963-02-09 | 1963-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-10 | 1967-02-09 | 1967-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-10 | 1971-02-09 | 1971-08-11 | $7700.00 | Window Closed / Lapsed |