Patent US2704941A successfully refreshed from Google Patents.
US2704941A
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US
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Power driven reciprocating tool
Assignee: Black and Decker Corp
•
Filing: 1952-04-03
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Granted: 1955-03-29
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Expires: 1972-04-03
Abstract
No abstract record available.
Inventors
- 👤 Frank L Holford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:33
CPC Classifications
B; B23; B23D; B23D49/00; B23D49/10; B23D49/16; B23D49/162; B23D51/00; B23D51/08; B23D51/10; B23D51/16; B23D51/161; B23D59/00; B23D59/006; B23D59/0062; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18248; Y10T74/18256; Y10T74/21; Y10T74/2186; Y10T74/2189
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
DE520490C
Cited
US630229A
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US672320A
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US717942A
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US2451374A
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US2548411A
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US2639737A
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US2595464A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-03-28 | 1958-09-27 | 1959-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-03-28 | 1962-09-27 | 1963-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-03-28 | 1966-09-27 | 1967-03-29 | $7700.00 | Window Closed / Lapsed |