Patent US2916305A successfully refreshed from Google Patents.
US2916305A
Expired / Lapsed
US
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Pipe coupling having a partially flexible locking member
Assignee: W R AMES CO
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Filing: 1956-05-28
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Granted: 1959-12-08
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Expires: 1976-05-28
Abstract
No abstract record available.
Inventors
- 👤 Roger M Sherman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:09
CPC Classifications
F; F16; F16L; F16L37/00; F16L37/08; F16L37/12; F16L37/14; F16L37/142; F16L37/148
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1882520A
Cited
US2087916A
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US2038867A
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GB462193A
Cited
US2256845A
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US2436407A
Cited
US2597482A
Cited
US2458714A
Cited
DK79392A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-12-07 | 1963-06-08 | 1963-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-07 | 1967-06-08 | 1967-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-07 | 1971-06-08 | 1971-12-08 | $7700.00 | Window Closed / Lapsed |