Patent US4735605A successfully refreshed from Google Patents.
US3274993A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Humidifier
Assignee: Lau Blower Co
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Filing: 1965-09-13
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Granted: 1966-09-27
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Expires: 1985-09-13
Abstract
No abstract record available.
Inventors
- 👤 Warner W Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:07
CPC Classifications
F; F24; F24D; F24D5/00; Y; Y10; Y10S; Y10S261/00; Y10S261/15
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
137 words
A HIGH CAPACITY HUMIDIFIER OF THE CHARACTER DESCRIBED ADAPTED TO HAVE ONE SIDE THEREOF SECURED ADJACENT A VERTICAL WALL OF A FURNACE OR THE LIKE COMPRISING, A HOUSING HAVING A VERTICAL PARTITION DIVIDING SAID HOUSING INTO AIR INLET CHAMBER AND HUMIDIFICATION CHAMBER, MEANS DEFINING A CIRCULAR OPENING IN SAID PARTITION TO INTERCONNECT SAID CHAMBERS, MEANS ON SAID ONE SIDE OF SAID HOUSING ADAPTED TO CONNECT SAID CHAMBERS TO THE INTERIOR OF THE FURNACE OR DUCT, SAID HOUSING HAVING REMOVABLE SIDE WALL WHICH FORMS ONE SIDE OF SAID HUMIDIFICATION CHAMBER, A HIGHLY POROUS EVAPORATOR DRUM MOUNTED ON SAID SIDE WALL AND DISPOSED IN SAID HUMIDIFICATION CHAMBER, SAID DRUM HAVING AN OUTER SIZE SMALLER THAN THE SIZE OF SAID SIDE WALL SO THAT SAID DRUM CAN BE REMOVED FROM SAID HOUSING WITH SAID SIDE WALL, MEANS FOR WETTING SAID
Claim 2
Dependent Claim
137 words
A HIGH CAPACITY HUMIDIFIER OF THE CHARACTER DESCRIBED ADAPTED TO HAVE ONE SIDE THEREOF SECURED ADJACENT A VERTICAL WALL OF A FURNACE OR THE LIKE COMPRISING, A HOUSING HAVING A VERTICAL PARTITION DIVIDING SAID HOUSING INTO AIR INLET CHAMBER AND HUMIDIFICATION CHAMBER, MEANS DEFINING A CIRCULAR OPENING IN SAID PARTITION TO INTERCONNECT SAID CHAMBERS, MEANS ON SAID ONE SIDE OF SAID HOUSING ADAPTED TO CONNECT SAID CHAMBERS TO THE INTERIOR OF THE FURNACE OR DUCT, SAID HOUSING HAVING REMOVABLE SIDE WALL WHICH FORMS ONE SIDE OF SAID HUMIDIFICATION CHAMBER, A HIGHLY POROUS EVAPORATOR DRUM MOUNTED ON SAID SIDE WALL AND DISPOSED IN SAID HUMIDIFICATION CHAMBER, SAID DRUM HAVING AN OUTER SIZE SMALLER THAN THE SIZE OF SAID SIDE WALL SO THAT SAID DRUM CAN BE REMOVED FROM SAID HOUSING WITH SAID SIDE WALL, MEANS FOR WETTING SAID
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) | 1969-09-26 | 1970-03-28 | 1970-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-26 | 1974-03-28 | 1974-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-26 | 1978-03-28 | 1978-09-27 | $7700.00 | Window Closed / Lapsed |