US3393926A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydraulic coupling
Assignee: HUGHES UNDERSEA COUPLINGS INCORPORATED A CORP OF
•
Filing: 1965-09-09
•
Granted: 1968-07-23
•
Expires: 1985-09-09
Abstract
No abstract record available.
Inventors
- 👤 James F Arnold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 01:43
CPC Classifications
F; F16; F16L; F16L1/00; F16L1/26; F16L37/00; F16L37/002
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2017994A
Cited
US2001946A
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US2159640A
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GB556256A
Cited
US2561957A
Cited
US2897895A
Cited
US3097866A
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US3142500A
Cited
US3209829A
Cited
US3284105A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-23 | 1972-01-22 | 1972-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-23 | 1976-01-22 | 1976-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-23 | 1980-01-22 | 1980-07-23 | $7700.00 | Window Closed / Lapsed |