US2680181A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arc welding
Assignee: General Electric Co
•
Filing: 1952-06-26
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Granted: 1954-06-01
•
Expires: 1972-06-26
Abstract
No abstract record available.
Inventors
- 👤 Roger W Tuthill
- 👤 Jr Alanson U Welch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 22:50
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/16; B23K9/173; B23K9/10; B23K9/1006; C; C07; C07C; C07C7/00; C07C7/04; C07C7/05; C07C7/06; H; H02; H02K; H02K23/00; H02K23/02; H02K23/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-05-31 | 1957-11-30 | 1958-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-05-31 | 1961-11-30 | 1962-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-05-31 | 1965-11-30 | 1966-06-01 | $7700.00 | Window Closed / Lapsed |