US1933531A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sawing machine
Assignee: National Tube Co
•
Filing: 1932-05-20
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Granted: 1933-10-31
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Expires: 1952-05-20
Abstract
No abstract record available.
Inventors
- 👤 John A Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 16:23
CPC Classifications
B; B23; B23D; B23D45/00; B23D45/10; B23D47/00; B23D47/04; B23D47/042; B23D47/045; B23D47/047; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/30868; Y10T409/309016; Y10T409/309072; Y10T83/00; Y10T83/647; Y10T83/654; Y10T83/6545; Y10T83/6547; Y10T83/6548; Y10T83/6555; Y10T83/6558; Y10T83/656; Y10T83/6584; Y10T83/6606
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) | 1936-10-30 | 1937-05-01 | 1937-10-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-10-30 | 1941-05-01 | 1941-10-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-10-30 | 1945-05-01 | 1945-10-31 | $7700.00 | Window Closed / Lapsed |