US2172274A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Straight-line cut-off saw
Assignee: AUTOMATIC MACHINERY Corp
•
Filing: 1937-02-18
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Granted: 1939-09-05
•
Expires: 1957-02-18
Abstract
No abstract record available.
Inventors
- 👤 Richard H Crouch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:28
CPC Classifications
B; B23; B23D; B23D47/00; B23D47/08; B23D47/10; B27; B27B; B27B5/00; B27B5/16; B27B5/18; B27B5/187; Y; Y10; Y10T; Y10T83/00; Y10T83/525; Y10T83/541; Y10T83/768; Y10T83/7755; Y10T83/7763; Y10T83/7776; Y10T83/778
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1942-09-04 | 1943-03-06 | 1943-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-09-04 | 1947-03-06 | 1947-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-09-04 | 1951-03-06 | 1951-09-05 | $7700.00 | Window Closed / Lapsed |