Patent US2927992A successfully refreshed from Google Patents.
US2927992A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic electric arc welding
Assignee: Individual
•
Filing: 1958-06-23
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Granted: 1960-03-08
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Expires: 1978-06-23
Abstract
No abstract record available.
Inventors
- 👤 Bateman William Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 04:46
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/02; B23K9/028
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1712114A
Cited
US1884644A
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US1957489A
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US1978042A
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US2030689A
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US1983321A
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US2068166A
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US2522146A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-08 | 1963-09-07 | 1964-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-08 | 1967-09-07 | 1968-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-08 | 1971-09-07 | 1972-03-08 | $7700.00 | Window Closed / Lapsed |