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Patent US2517653A successfully refreshed from Google Patents.
US2517653A
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US
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Portable spot welder
Assignee: KARMA Manufacturing Co
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Filing: 1949-05-03
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Granted: 1950-08-08
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Expires: 1969-05-03
Abstract
No abstract record available.
Inventors
- 👤 Ralph M Gaston
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:48
CPC Classifications
B; B23; B23K; B23K11/00; B23K11/28; Y; Y10; Y10T; Y10T24/00; Y10T24/44; Y10T24/44291; Y10T24/44376; Y10T24/44385; Y10T24/44462; Y10T74/00; Y10T74/18; Y10T74/18856
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2190692A
Cited
US2267297A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-08-07 | 1954-02-06 | 1954-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-08-07 | 1958-02-06 | 1958-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-08-07 | 1962-02-06 | 1962-08-08 | $7700.00 | Window Closed / Lapsed |