US2087057A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Welding apparatus
Assignee: UNA WELDING Inc
•
Filing: 1936-03-31
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Granted: 1937-07-13
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Expires: 1956-03-31
Abstract
No abstract record available.
Inventors
- 👤 Lynn S Burgett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:19
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/40; B23K35/404; B23K9/00; B23K9/12; B23K9/133; B23K9/1336; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49828; Y10T29/53; Y10T29/53126
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) | 1940-07-12 | 1941-01-11 | 1941-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1944-07-12 | 1945-01-11 | 1945-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1948-07-12 | 1949-01-11 | 1949-07-13 | $7700.00 | Window Closed / Lapsed |