US2472352A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid actuated tool
Assignee: Reed Roller Bit Co
•
Filing: 1943-12-30
•
Granted: 1949-06-07
•
Expires: 1963-12-30
Abstract
No abstract record available.
Inventors
- 👤 Paul Van Sittert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:47
CPC Classifications
B; B25; B25D; B25D9/00; B25D9/06; B25D9/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US482942A
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US605486A
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US1022837A
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US1124627A
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US1130957A
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US1240708A
Cited
US1224089A
Cited
US1574762A
Cited
US1589295A
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US1968376A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-06-06 | 1952-12-06 | 1953-06-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-06-06 | 1956-12-06 | 1957-06-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-06-06 | 1960-12-06 | 1961-06-07 | $7700.00 | Window Closed / Lapsed |