Patent US2726689A successfully refreshed from Google Patents.
US2726689A
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US
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Motor attachment device for power tools
Assignee: Individual
•
Filing: 1953-03-30
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Granted: 1955-12-13
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Expires: 1973-03-30
Abstract
No abstract record available.
Inventors
- 👤 Robert L Busby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:23
CPC Classifications
B; B25; B25F; B25F3/00; B23; B23D; B23D49/00; B23D49/10; B23D49/16; B23D49/162; B23D57/00; B23D57/0076; B27; B27C; B27C9/00; B27C9/005; H; H02; H02K; H02K7/00; H02K7/14; Y; Y10; Y10T; Y10T408/00; Y10T408/31
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1303011A
Cited
US1316027A
Cited
US1779031A
Cited
US2122611A
Cited
US2519526A
Cited
US2588477A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-12-12 | 1959-06-13 | 1959-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-12-12 | 1963-06-13 | 1963-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-12-12 | 1967-06-13 | 1967-12-13 | $7700.00 | Window Closed / Lapsed |