Patent US2737140A successfully refreshed from Google Patents.
US2737140A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Welding frame
Assignee: Individual
•
Filing: 1953-05-04
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Granted: 1956-03-06
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Expires: 1973-05-04
Abstract
No abstract record available.
Inventors
- 👤 Luther D Totten
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:34
CPC Classifications
F; F16; F16L; F16L1/00; F16L1/024; F16L1/06; F16L1/09; B; B23; B23K; B23K37/00; B23K37/04; B23K37/053; B23K37/0533
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1319608A
Cited
US2061671A
Cited
US2235553A
Cited
US2277519A
Cited
US2354794A
Cited
US2525680A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-03-06 | 1959-09-05 | 1960-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-03-06 | 1963-09-05 | 1964-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-03-06 | 1967-09-05 | 1968-03-06 | $7700.00 | Window Closed / Lapsed |