US2575737A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas torch machine for cutting rounds and the like
Assignee: Airco Inc
•
Filing: 1948-08-24
•
Granted: 1951-11-20
•
Expires: 1968-08-24
Abstract
No abstract record available.
Inventors
- 👤 Joseph M Tyrner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:16
CPC Classifications
B; B23; B23K; B23K7/00; B23K7/005; Y; Y10; Y10S; Y10S266/00; Y10S266/902
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US60506A
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US465689A
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US866866A
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US1687001A
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US1860653A
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US2177276A
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US2242448A
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US2378017A
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US2429686A
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US2416384A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-11-19 | 1955-05-21 | 1955-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-11-19 | 1959-05-21 | 1959-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-11-19 | 1963-05-21 | 1963-11-20 | $7700.00 | Window Closed / Lapsed |