US2652894A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hold-down slip assembly for well packers
Assignee: BROWN
•
Filing: 1948-08-09
•
Granted: 1953-09-22
•
Expires: 1968-08-09
Abstract
No abstract record available.
Inventors
- 👤 Cicero C Brown
- 👤 Jr Floyd L Scott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:59
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/10; E21B33/12; E21B33/129; Y; Y10; Y10T; Y10T279/00; Y10T279/19; Y10T279/1973
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2136597A
Cited
US2196668A
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US2194331A
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US2230712A
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US2370832A
Cited
US2373005A
Cited
US2352700A
Cited
US2356232A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-09-21 | 1957-03-23 | 1957-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-21 | 1961-03-23 | 1961-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-21 | 1965-03-23 | 1965-09-22 | $7700.00 | Window Closed / Lapsed |