Patent US2943654A successfully refreshed from Google Patents.
US2943654A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable power operated router
Assignee: Porter Cable Machine Co
•
Filing: 1957-09-18
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Granted: 1960-07-05
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Expires: 1977-09-18
Abstract
No abstract record available.
Inventors
- 👤 Arthur N Emmons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:04
CPC Classifications
B; B27; B27C; B27C5/00; B27C5/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1883392A
Cited
US2591002A
Cited
US2672898A
Cited
US2623557A
Cited
US2702569A
Cited
US2842173A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-05 | 1964-01-04 | 1964-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-05 | 1968-01-04 | 1968-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-05 | 1972-01-04 | 1972-07-05 | $7700.00 | Window Closed / Lapsed |