US3137783A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods of arc welding
Assignee: Associated Electrical Industries Ltd
•
Filing: 1961-01-16
•
Granted: 1964-06-16
•
Expires: 1981-01-16
Abstract
No abstract record available.
Inventors
- 👤 Addie James William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:23
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/16; B23K9/173
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1589017A
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US2475357A
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US2727125A
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GB807645A
Cited
US2988627A
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US2963570A
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US2920181A
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US2948803A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-06-16 | 1967-12-16 | 1968-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-06-16 | 1971-12-16 | 1972-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-06-16 | 1975-12-16 | 1976-06-16 | $7700.00 | Window Closed / Lapsed |