US3408475A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sensor for a welding machine
Assignee: LEWIS WELDING AND ENGINEERING
•
Filing: 1965-04-28
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Granted: 1968-10-29
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Expires: 1985-04-28
Abstract
No abstract record available.
Inventors
- 👤 Fier Raymond Louis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:42
CPC Classifications
B; B23; B23Q; B23Q35/00; B23Q35/04; B23Q35/24; B23Q35/26; B23Q35/30; B23Q35/32; B23K; B23K9/00; B23K9/12; B23K9/127; B23K9/1272; B23K9/1274; H; H01; H01H; H01H35/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2189399A
Cited
US2670423A
Cited
US2839663A
Cited
US3072779A
Cited
US3158121A
Cited
US3171012A
Cited
US3201561A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-10-29 | 1972-04-29 | 1972-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-10-29 | 1976-04-29 | 1976-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-10-29 | 1980-04-29 | 1980-10-29 | $7700.00 | Window Closed / Lapsed |