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Patent US2664925A successfully refreshed from Google Patents.
US2664925A
Expired / Lapsed
US
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Portable power saw with oppositely rotating blades
Assignee: Individual
•
Filing: 1949-04-16
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Granted: 1954-01-05
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Expires: 1969-04-16
Abstract
No abstract record available.
Inventors
- 👤 Joseph H Jacobs
- 👤 Marcellus L Jacobs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:46
CPC Classifications
B; B27; B27B; B27B5/00; B27B5/10; Y; Y10; Y10S; Y10S83/00; Y10S83/928
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US963520A
Cited
FR487366A
Cited
FR497900A
Cited
FR624231A
Cited
US2461188A
Cited
US2497639A
Cited
US2555428A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-01-04 | 1957-07-06 | 1958-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-04 | 1961-07-06 | 1962-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-04 | 1965-07-06 | 1966-01-05 | $7700.00 | Window Closed / Lapsed |