US2286931A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cutter for dressing electrodes in spot welding machines
Assignee: WILLIAM H KELLER Inc
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Filing: 1938-07-22
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Granted: 1942-06-16
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Expires: 1958-07-22
Abstract
No abstract record available.
Inventors
- 👤 Robert W Radeke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:44
CPC Classifications
B; B23; B23K; B23K11/00; B23K11/30; B23K11/3063; B23B; B23B5/00; B23B5/16; B23B5/166; Y; Y10; Y10T; Y10T407/00; Y10T407/19; Y10T407/1902; Y10T407/1906; Y10T409/00; Y10T409/30; Y10T409/306216; Y10T409/306552
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) | 1945-06-15 | 1945-12-15 | 1946-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-06-15 | 1949-12-15 | 1950-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-06-15 | 1953-12-15 | 1954-06-16 | $7700.00 | Window Closed / Lapsed |