US2827112A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flame blasting and apparatus therefor
Assignee: Union Carbide Corp
•
Filing: 1953-08-28
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Granted: 1958-03-18
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Expires: 1973-08-28
Abstract
No abstract record available.
Inventors
- 👤 Harry V Inskeep
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 13:32
CPC Classifications
F; F23; F23D; F23D99/00; F23D99/002; F23D99/004; F23D2206/00; F23D2206/0031
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2111141A
Cited
US2129681A
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US2181937A
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US2385107A
Cited
US2595411A
Cited
US2583779A
Cited
US2618322A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-17 | 1961-09-16 | 1962-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-17 | 1965-09-16 | 1966-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-17 | 1969-09-16 | 1970-03-18 | $7700.00 | Window Closed / Lapsed |