US2182575A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric welding apparatus
Assignee: Linde Air Products Co
•
Filing: 1937-08-07
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Granted: 1939-12-05
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Expires: 1957-08-07
Abstract
No abstract record available.
Inventors
- 👤 Baird Albert William
- 👤 Outcalt Frederick Gurnee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:52
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/18; B23K9/186; B23K9/12; B23K9/133; B23K9/1336; B23K9/24; B23K9/28; B23K9/287
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1942-12-04 | 1943-06-05 | 1943-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-12-04 | 1947-06-05 | 1947-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-12-04 | 1951-06-05 | 1951-12-05 | $7700.00 | Window Closed / Lapsed |