US2842348A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic humidifier
Assignee: DRAIN ENTERPRISES Inc
•
Filing: 1954-11-17
•
Granted: 1958-07-08
•
Expires: 1974-11-17
Abstract
No abstract record available.
Inventors
- 👤 Arthur J Geen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:27
CPC Classifications
F; F24; F24D; F24D5/00; Y; Y10; Y10S; Y10S261/00; Y10S261/15
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1073259A
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US1733101A
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US2012508A
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US2155070A
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US2324629A
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US2341771A
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US2577302A
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US2678810A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-07 | 1962-01-06 | 1962-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-07 | 1966-01-06 | 1966-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-07 | 1970-01-06 | 1970-07-08 | $7700.00 | Window Closed / Lapsed |