US2467393A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Superheating method and apparatus
Assignee: STEAM TORCH Corp
•
Filing: 1945-06-13
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Granted: 1949-04-19
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Expires: 1965-06-13
Abstract
No abstract record available.
Inventors
- 👤 Louis J Leher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:27
CPC Classifications
F; F22; F22G; F22G1/00; F22G1/16; F22G1/165; F22B; F22B1/00; F22B1/28; F22B1/284
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1403594A
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AT104997B
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US1727995A
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US1707453A
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US1855898A
Cited
US1836247A
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US2000277A
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US2012523A
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US2043002A
Cited
US2291423A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-04-18 | 1952-10-18 | 1953-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-04-18 | 1956-10-18 | 1957-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-04-18 | 1960-10-18 | 1961-04-19 | $7700.00 | Window Closed / Lapsed |