US2946567A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Casing installing machine
Assignee: Individual
•
Filing: 1958-08-11
•
Granted: 1960-07-26
•
Expires: 1978-08-11
Abstract
No abstract record available.
Inventors
- 👤 Robert K Pepper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:52
CPC Classifications
E; E21; E21B; E21B7/00; E21B7/20; E21B7/201
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1699936A
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US1835191A
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US1881101A
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US2136151A
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US2136152A
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US2165666A
Cited
US2211223A
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US2326908A
Cited
US2625375A
Cited
US2633334A
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US2798707A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-26 | 1964-01-25 | 1964-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-26 | 1968-01-25 | 1968-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-26 | 1972-01-25 | 1972-07-26 | $7700.00 | Window Closed / Lapsed |