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US3171401A Expired / Lapsed US ⏱️ 0.0 years remaining

Humidifier

Assignee: MCDUFFEE BROS Inc
•
Filing: 1963-01-14
•
Granted: 1965-03-02
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Expires: 1983-01-14
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Abstract

No abstract record available.

Inventors

  • 👤 Robert W Mcduffee

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-25 16:02
CPC Classifications
F; F24; F24F; F24F6/00; F24F6/02; F24F6/04; Y; Y10; Y10S; Y10S261/00; Y10S261/15; Y10S261/34; Y10S261/44; Y10S261/46

Claims Analysis

Total Claims: 1
Claim 1
Independent Claim 147 words
A HUMIDIFIER APPARATUS ADAPTED FOR USE WITH A FURNACE SYSTEM WHICH INCLUDES MEANS TO CIRCULATE HEATED AIR, SAID HUMIDIFIER APPARATUS COMPRISING A HOUSING ADAPTED FOR ATTACHMENT TO THE FURNACE SYSTEM, AN INLET IN SAID HOUSING FOR ADMISSION OF DRY AIR INTO THE INTERIOR THEREOF, AN OUTLET IN SAID HOUSING FOR DISCHARGE OF HUMIDIFIED AIR, SUPPORT MEANS INCLUDING A PAIR OF GENERALLY CHANNEL-SHAPED INSERTS ATTACHED TO OPPOSITE INTERIOR WALLS OF SAID HOUSING, AN EVAPORATING FILTER ELEMENT RETAINED BY SAID CHANNEL-SHAPED INSERTS IN POSITION BETWEEN SAID DRY AIR INLET AND HUMIDIFIED AIR DISCHARGE OUTLET, A WATER DISTRUBUTION PAN SUPPORTED BY THE UPPER ENDS OF SAID CHANNEL-SHAPED INSERTS ELEMENTS OF SAID SUPPORT MEANS EVAPORATING FILTER ELEMENT FOR DELIVERY OF WATER THERETO AND MEANS FOR SUPPLYING WATER TO SAID WATER DISTRIBUTION PAN, THE CHANNEL-SHAPED INSERTS OF SAID SUPPORT MEANS BEING INDIVIDUALLY VERTICALLY ADJUSTABLE TO ENABLE LEVELING OF SAID WATER DISTRIBUTION PAN.

References Cited (Backward Citations)

CA635136A Cited
US826676A Cited
US849568A Cited
US2268540A Cited
US2424927A Cited
US2582071A Cited
US2637540A Cited
US2670941A Cited
US2838130A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1968-03-01 1968-08-31 1969-03-02 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1972-03-01 1972-08-31 1973-03-02 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1976-03-01 1976-08-31 1977-03-02 $7700.00 Window Closed / Lapsed

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