US2631028A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Torch cutting machine
Assignee: National Cylinder Gas Co
•
Filing: 1946-05-14
•
Granted: 1953-03-10
•
Expires: 1966-05-14
Abstract
No abstract record available.
Inventors
- 👤 Thomas F Murr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:59
CPC Classifications
B; B23; B23K; B23K7/00; B23K7/002; Y; Y10; Y10T; Y10T409/00; Y10T409/30; Y10T409/30084; Y10T409/302968; Y10T409/303024; Y10T409/303192
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1079910A
Cited
FR626443A
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US1928121A
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GB354389A
Cited
US1879444A
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US1999787A
Cited
US2006121A
Cited
FR46499E
Cited
US2336626A
Cited
US2364645A
Cited
US2397933A
Cited
US2477041A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-09 | 1956-09-08 | 1957-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-09 | 1960-09-08 | 1961-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-09 | 1964-09-08 | 1965-03-10 | $7700.00 | Window Closed / Lapsed |