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US3496327A
Expired / Lapsed
US
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Arc-spot welding system responsive to radiation from weld for controlling duration of flow of welding current
Assignee: Sciaky Brothers Inc
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Filing: 1966-11-25
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Granted: 1970-02-17
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Expires: 1986-11-25
Abstract
No abstract record available.
Inventors
- 👤 Eugene P Vilkas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:09
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/095; B23K9/0956; B23K9/007
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2233617A
Cited
US2223177A
Cited
US2942097A
Cited
US3015022A
Cited
US3240913A
Cited
US3299250A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-16 | 1973-08-18 | 1974-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-16 | 1977-08-18 | 1978-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-16 | 1981-08-18 | 1982-02-17 | $7700.00 | Window Closed / Lapsed |