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Patent US1983719A successfully refreshed from Google Patents.
US1983719A
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Chamfering machine
Assignee: Individual
•
Filing: 1933-06-09
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Granted: 1934-12-11
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Expires: 1953-06-09
Abstract
No abstract record available.
Inventors
- 👤 Charles M E Wendnagel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:30
CPC Classifications
B; B27; B27C; B27C5/00; A; A63; A63H; A63H19/00; A63H19/30; A63H19/32; B27F; B27F5/00; B27F5/02; B27H; B27H3/00; B27H3/04; Y; Y10; Y10T; Y10T83/00; Y10T83/02; Y10T83/0304; Y10T83/647; Y10T83/664; Y10T83/727; Y10T83/739
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) | 1937-12-10 | 1938-06-11 | 1938-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-12-10 | 1942-06-11 | 1942-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-12-10 | 1946-06-11 | 1946-12-11 | $7700.00 | Window Closed / Lapsed |