US2538245A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Welding electrode holder switch
Assignee: EDWARD R MCHUGH
•
Filing: 1946-10-19
•
Granted: 1951-01-16
•
Expires: 1966-10-19
Abstract
No abstract record available.
Inventors
- 👤 Hiller Gustave
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 01:24
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/24; B23K9/28; B23K9/29; B23K9/291
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2148095A
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US2373598A
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US2378707A
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US2389969A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-01-15 | 1954-07-17 | 1955-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-01-15 | 1958-07-17 | 1959-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-01-15 | 1962-07-17 | 1963-01-16 | $7700.00 | Window Closed / Lapsed |