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US2429112A
Expired / Lapsed
US
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Floating electrode-wick humidifier
Assignee: DANIEL DE SESSA
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Filing: 1945-12-12
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Granted: 1947-10-14
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Expires: 1965-12-12
Abstract
No abstract record available.
Inventors
- 👤 Lucille P Warren
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:07
CPC Classifications
F; F24; F24F; F24F6/00; F24F6/02; F24F6/025; Y; Y10; Y10S; Y10S159/00; Y10S159/906; Y10S261/00; Y10S261/88
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-10-13 | 1951-04-14 | 1951-10-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-10-13 | 1955-04-14 | 1955-10-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-10-13 | 1959-04-14 | 1959-10-14 | $7700.00 | Window Closed / Lapsed |