Patent US2959453A successfully refreshed from Google Patents.
US2959453A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drill pipe protector
Assignee: Individual
•
Filing: 1956-04-27
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Granted: 1960-11-08
•
Expires: 1976-04-27
Abstract
No abstract record available.
Inventors
- 👤 Harvey C Jacobs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:40
CPC Classifications
E; E21; E21B; E21B17/00; E21B17/10; E21B17/1042; E21B17/105; Y; Y10; Y10T; Y10T24/00; Y10T24/14; Y10T24/1457; Y10T24/1482
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1636492A
Cited
US1994819A
Cited
US1907012A
Cited
US1838164A
Cited
US2002893A
Cited
US2197531A
Cited
US2251428A
Cited
US2628134A
Cited
US2636787A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-08 | 1964-05-09 | 1964-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-08 | 1968-05-09 | 1968-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-08 | 1972-05-09 | 1972-11-08 | $7700.00 | Window Closed / Lapsed |