US3400950A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stab-in conduit couplings
Assignee: Vetco Gray LLC
•
Filing: 1966-05-26
•
Granted: 1968-09-10
•
Expires: 1986-05-26
Abstract
No abstract record available.
Inventors
- 👤 Herbert O Quebe
- 👤 Robert L Crain
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:38
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/02; E21B33/03; E21B33/04; E21B33/043
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1995006A
Cited
US2174076A
Cited
US2110127A
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US2644524A
Cited
US3054628A
Cited
US3163222A
Cited
US3163217A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-10 | 1972-03-11 | 1972-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-10 | 1976-03-11 | 1976-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-10 | 1980-03-11 | 1980-09-10 | $7700.00 | Window Closed / Lapsed |