US2627248A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure fluid actuated tool with improved valve actuating means
Assignee: KELLER TOOL CO
•
Filing: 1948-11-30
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Granted: 1953-02-03
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Expires: 1968-11-30
Abstract
No abstract record available.
Inventors
- 👤 Ernest H Shaff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:30
CPC Classifications
B; B23; B23D; B23D51/00; B23D51/16; B23D51/18; B23D67/00; Y; Y10; Y10T; Y10T29/00; Y10T29/44
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US475776A
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US869568A
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US882025A
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US1020003A
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US1094811A
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US1767214A
Cited
US2072445A
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US2406747A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-02-03 | 1956-08-04 | 1957-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-02-03 | 1960-08-04 | 1961-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-02-03 | 1964-08-04 | 1965-02-03 | $7700.00 | Window Closed / Lapsed |