US2766829A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Conduit connections and sealing means therefor
Assignee: Vetco Gray LLC
•
Filing: 1953-03-04
•
Granted: 1956-10-16
•
Expires: 1973-03-04
Abstract
No abstract record available.
Inventors
- 👤 John D Watts
- 👤 Erwin F Hill
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:06
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/02; E21B33/03; E21B33/04; E21B2200/00; E21B2200/01
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2486120A
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US2624413A
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US2638169A
Cited
DE801604C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-16 | 1960-04-16 | 1960-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-16 | 1964-04-16 | 1964-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-16 | 1968-04-16 | 1968-10-16 | $7700.00 | Window Closed / Lapsed |