US2922664A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Underwater coupling and method
Assignee: Dresser Industries Inc
•
Filing: 1955-11-17
•
Granted: 1960-01-26
•
Expires: 1975-11-17
Abstract
No abstract record available.
Inventors
- 👤 Roger E Risley
- 👤 Frederick T Newell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:28
CPC Classifications
F; F16; F16L; F16L17/00; F16L17/10; F16L1/00; F16L1/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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GB301066A
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US1874081A
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US2502351A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-25 | 1963-07-27 | 1964-01-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-25 | 1967-07-27 | 1968-01-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-25 | 1971-07-27 | 1972-01-26 | $7700.00 | Window Closed / Lapsed |