Patent US3223545A successfully refreshed from Google Patents.
Patent US2043960A successfully refreshed from Google Patents.
US2043960A
Expired / Lapsed
US
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Electric welding
Assignee: Union Carbide Corp
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Filing: 1935-10-09
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Granted: 1936-06-09
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Expires: 1955-10-09
Abstract
No abstract record available.
Inventors
- 👤 Jones Lloyd Theodore
- 👤 Kennedy Harry Edward
- 👤 Rotermund Maynard Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:03
CPC Classifications
B; B23; B23K; B23K25/00; B23K35/00; B23K35/22; B23K35/36; B23K35/3601; B23K35/3607
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) | 1939-06-09 | 1939-12-09 | 1940-06-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-06-09 | 1943-12-09 | 1944-06-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-06-09 | 1947-12-09 | 1948-06-09 | $7700.00 | Window Closed / Lapsed |