US3120968A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Quick disconnect coupling with ring detent
Assignee: Individual
•
Filing: 1960-04-21
•
Granted: 1964-02-11
•
Expires: 1980-04-21
Abstract
No abstract record available.
Inventors
- 👤 John H Calvin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:30
CPC Classifications
F; F16; F16L; F16L37/00; F16L37/22; F16L37/28; F16L37/30; F16L37/32; F16L37/34; F16L37/35
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2086569A
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US2084431A
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US2327611A
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US2344740A
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US2579314A
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US2958544A
Cited
US2848255A
Cited
US2913263A
Cited
US2898130A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-02-10 | 1967-08-12 | 1968-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-02-10 | 1971-08-12 | 1972-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-02-10 | 1975-08-12 | 1976-02-11 | $7700.00 | Window Closed / Lapsed |