Patent US2968187A successfully refreshed from Google Patents.
US2968187A
Expired / Lapsed
US
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Portable belt-driven tools with detachable motors
Assignee: Singer Co
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Filing: 1957-09-10
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Granted: 1961-01-17
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Expires: 1977-09-10
Abstract
No abstract record available.
Inventors
- 👤 Happe Reynold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:46
CPC Classifications
B; B27; B27C; B27C9/00; B27C9/005
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1203653A
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US1701195A
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US1921849A
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FR864714A
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US2248948A
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US2600859A
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US2737213A
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US2674896A
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US2803474A
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US2718246A
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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) | 1964-01-17 | 1964-07-18 | 1965-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-17 | 1968-07-18 | 1969-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-17 | 1972-07-18 | 1973-01-17 | $7700.00 | Window Closed / Lapsed |