US2568464A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric welding system
Assignee: General Electric Co
•
Filing: 1941-07-31
•
Granted: 1951-09-18
•
Expires: 1961-07-31
Abstract
No abstract record available.
Inventors
- 👤 George L Rogers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:41
CPC Classifications
B; B23; B23K; B23K11/00; B23K11/24; B23K11/26
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE21369E
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US1902955A
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US2021173A
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US2019027A
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US2105899A
Cited
US2179105A
Cited
US2250102A
Cited
US2255502A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-09-17 | 1955-03-19 | 1955-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-09-17 | 1959-03-19 | 1959-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-09-17 | 1963-03-19 | 1963-09-18 | $7700.00 | Window Closed / Lapsed |