US3332672A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic humidifier with periodic water replacement
Assignee: Atwater General Corp
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Filing: 1966-05-27
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Granted: 1967-07-25
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Expires: 1986-05-27
Abstract
No abstract record available.
Inventors
- 👤 Pieter W Schipper
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:03
CPC Classifications
F; F24; F24F; F24F3/00; F24F3/12; F24F3/14; F24F6/00; F24F6/02; F24F6/04; Y; Y10; Y10S; Y10S261/00; Y10S261/15; Y10S261/34; Y10S261/46
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
63 words
IN A HUMIDIFIER, THE COMBINATION OF A WATER PAN, MEANS FOR FORCING AIR THROUGH THE WATER IN SAID PAN FOR THE HUMIDIFICATION OF SUCH AIR, MEANS FOR ADMITTING WATER TO SAID PAN FOR REPLACEMENT OF WATER EVAPORATED BY SAID AIR, AND MEANS FOR CONTROLLING WATER ADMISSION INCLUDING A PRESSURE SWITCH EXPOSED TO THE AIR BETWEEN THE SAID FORCING MEANS AND THE WATER PAN.
Claim 2
Dependent Claim
63 words
IN A HUMIDIFIER, THE COMBINATION OF A WATER PAN, MEANS FOR FORCING AIR THROUGH THE WATER IN SAID PAN FOR THE HUMIDIFICATION OF SUCH AIR, MEANS FOR ADMITTING WATER TO SAID PAN FOR REPLACEMENT OF WATER EVAPORATED BY SAID AIR, AND MEANS FOR CONTROLLING WATER ADMISSION INCLUDING A PRESSURE SWITCH EXPOSED TO THE AIR BETWEEN THE SAID FORCING MEANS AND THE WATER PAN.
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) | 1970-07-24 | 1971-01-23 | 1971-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-24 | 1975-01-23 | 1975-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-24 | 1979-01-23 | 1979-07-25 | $7700.00 | Window Closed / Lapsed |