US2462952A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solar activated dehumidifier
Assignee: Davison Chemical Corp
•
Filing: 1945-08-03
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Granted: 1949-03-01
•
Expires: 1965-08-03
Abstract
No abstract record available.
Inventors
- 👤 Elmer B Dunkak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:02
CPC Classifications
F; F24; F24F; F24F3/00; F24F3/12; F24F3/14; F24F3/1411; F24S; F24S40/00; F24S40/40; F24S40/50; F24S40/53; F24F2003/1458; Y; Y02; Y02E; Y02E10/00; Y02E10/40; Y10; Y10S; Y10S159/00; Y10S159/902; Y10S159/903
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US430762A
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US2138691A
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US1556865A
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US1759971A
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US1601308A
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US1841691A
Cited
US2138684A
Cited
US2138689A
Cited
US2138690A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-02-29 | 1952-08-30 | 1953-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-02-29 | 1956-08-30 | 1957-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-02-29 | 1960-08-30 | 1961-03-01 | $7700.00 | Window Closed / Lapsed |