US3468562A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Speed slip-on hose coupler locked by fluid pressure
Assignee: INTERN PATENT RESEARCH CORP
•
Filing: 1967-09-08
•
Granted: 1969-09-23
•
Expires: 1987-09-08
Abstract
No abstract record available.
Inventors
- 👤 Ho Chow
- 👤 George D Angelo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:45
CPC Classifications
F; F16; F16L; F16L37/00; F16L37/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2069434A
Cited
US2225610A
Cited
US2631872A
Cited
US2913263A
Cited
US3177018A
Cited
US3334860A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-09-22 | 1973-03-24 | 1973-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-09-22 | 1977-03-24 | 1977-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-09-22 | 1981-03-24 | 1981-09-23 | $7700.00 | Window Closed / Lapsed |