US2661603A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vault conditioner with control means
Assignee: Individual
•
Filing: 1950-12-18
•
Granted: 1953-12-08
•
Expires: 1970-12-18
Abstract
No abstract record available.
Inventors
- 👤 Trask Allen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:17
CPC Classifications
F; F24; F24F; F24F3/00; F24F3/12; F24F3/14; F24F3/153; F24F3/1405
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1837798A
Cited
US1945379A
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US2236058A
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US2286491A
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US2369511A
Cited
US2438120A
Cited
US2497069A
Cited
US2528720A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-12-07 | 1957-06-08 | 1957-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-12-07 | 1961-06-08 | 1961-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-12-07 | 1965-06-08 | 1965-12-08 | $7700.00 | Window Closed / Lapsed |