US2919936A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metallic lined pipe coupling having a metallic seal
Assignee: Curtiss Wright Corp
•
Filing: 1956-01-03
•
Granted: 1960-01-05
•
Expires: 1976-01-03
Abstract
No abstract record available.
Inventors
- 👤 Roy T Hurley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:03
CPC Classifications
F; F16; F16L; F16L23/00; F16L23/12; F16L23/125
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US660862A
Cited
US969423A
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US1179091A
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GB165925A
Cited
US1443051A
Cited
US1855494A
Cited
US2065480A
Cited
US2271425A
Cited
FR883048A
Cited
US2695184A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-04 | 1963-07-06 | 1964-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-04 | 1967-07-06 | 1968-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-04 | 1971-07-06 | 1972-01-05 | $7700.00 | Window Closed / Lapsed |