US2481130A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drier for thermal pipe insulation
Assignee: Eagle Picher Co
•
Filing: 1945-05-05
•
Granted: 1949-09-06
•
Expires: 1965-05-05
Abstract
No abstract record available.
Inventors
- 👤 Ralph L Lindemuth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 13:21
CPC Classifications
F; F27; F27B; F27B9/00; F27B9/14; F27B9/20; F27B9/24; F27B9/2407; F27B9/2415; F26; F26B; F26B15/00; F26B15/10; F26B15/12; F26B15/122; F26B21/00; F26B21/006
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1697454A
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US2039129A
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US2124010A
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US2194941A
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US2260517A
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US2335618A
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US2385962A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-09-05 | 1953-03-07 | 1953-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-09-05 | 1957-03-07 | 1957-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-09-05 | 1961-03-07 | 1961-09-06 | $7700.00 | Window Closed / Lapsed |