Patent US2765824A successfully refreshed from Google Patents.
US2765824A
Expired / Lapsed
US
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Portable power operated saw
Assignee: Porter Cable Machine Co
•
Filing: 1952-04-10
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Granted: 1956-10-09
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Expires: 1972-04-10
Abstract
No abstract record available.
Inventors
- 👤 Hartmann Eric
- 👤 Walter A Papworth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:22
CPC Classifications
B; B27; B27G; B27G19/00; B27G19/02; B27G19/04; Y; Y10; Y10T; Y10T83/00; Y10T83/929; Y10T83/9372; Y10T83/9377; Y10T83/9379
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1701948A
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US1623290A
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US1858459A
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US1806528A
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US1848330A
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US1850444A
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US1900553A
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US2488947A
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US2543486A
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US2544461A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-10-09 | 1960-04-09 | 1960-10-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-09 | 1964-04-09 | 1964-10-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-09 | 1968-04-09 | 1968-10-09 | $7700.00 | Window Closed / Lapsed |