US2881826A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cutting torch tip
Assignee: Airco Inc
•
Filing: 1956-07-16
•
Granted: 1959-04-14
•
Expires: 1976-07-16
Abstract
No abstract record available.
Inventors
- 👤 Jr George R Spies
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:13
CPC Classifications
F; F23; F23D; F23D14/00; F23D14/38; F23D14/42
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1282416A
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US1526923A
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US2176813A
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US2355849A
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US2348774A
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US2506415A
Cited
US2491310A
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US2518895A
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US2487803A
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US2702079A
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US2759531A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-13 | 1962-10-13 | 1963-04-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-13 | 1966-10-13 | 1967-04-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-13 | 1970-10-13 | 1971-04-14 | $7700.00 | Window Closed / Lapsed |