US2884789A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Power operated elliptical motion tool
Assignee: Porter Cable Machine Co
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Filing: 1956-04-04
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Granted: 1959-05-05
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Expires: 1976-04-04
Abstract
No abstract record available.
Inventors
- 👤 Frostad Lars
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:28
CPC Classifications
B; B23; B23D; B23D49/00; B23D49/10; B23D49/16; B23D49/162; B23D49/165; Y; Y10; Y10T; Y10T74/00; Y10T74/18; Y10T74/18056; Y10T74/18184; Y10T74/182; Y10T83/00; Y10T83/748; Y10T83/7487; Y10T83/7567
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-05-04 | 1962-11-03 | 1963-05-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-05-04 | 1966-11-03 | 1967-05-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-05-04 | 1970-11-03 | 1971-05-05 | $7700.00 | Window Closed / Lapsed |