US2969838A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Combination shearing and shut-off ram
Assignee: Shaffer Tool Works
•
Filing: 1956-07-23
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Granted: 1961-01-31
•
Expires: 1976-07-23
Abstract
No abstract record available.
Inventors
- 👤 Arthur E Wilde
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:00
CPC Classifications
E; E21; E21B; E21B33/00; E21B33/02; E21B33/03; E21B33/06; E21B33/061; E21B33/062; E21B33/063; E21B29/00; E21B29/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1106026A
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US1802732A
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US1949672A
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US2052939A
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US2631609A
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US2919111A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-01-31 | 1964-08-01 | 1965-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-31 | 1968-08-01 | 1969-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-31 | 1972-08-01 | 1973-01-31 | $7700.00 | Window Closed / Lapsed |