US3093059A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roof ventilator with removable hood
Assignee: Northwest Metal Products Inc
•
Filing: 1961-03-02
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Granted: 1963-06-11
•
Expires: 1981-03-02
Abstract
No abstract record available.
Inventors
- 👤 Peter P Metz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:06
CPC Classifications
F; F24; F24F; F24F7/00; F24F7/02; E; E04; E04D; E04D13/00; E04D13/03; E04D13/0325
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
156 words
A ROOF VENTILATOR COMPRISING A BASE PLATE FORMED WITH A CENTRAL VENT APERTURE PROLONGED UPWARDLY BY A BAFFLE-PRODUCING NECK WHICH IS OPEN AT THE TOP, A SCREEN FOR SAID TOP OPENING, A HOOD FOR THE VENTILATOR, AND MEANS FOR REMOVABLY ATTACHING THE HOOD TO THE NECK SO THAT THE HOOD OVERLIES THE NECK IN A POSITION SPACED ABOVE SAID TOP OPENING AND WITH ITS EDGES EXTENDING OUTWARDLY BEYOND THE NECK AND TERMINATING IN DOWNTURNED SKIRTS WHICH, ALONG THE FRONT EDGE AND EACH OF THE TWO SIDES, DEPEND BELOW THE TOP LIMIT OF THE NECK WHILE BEING SPACED ABOVE THE BASE PLATE AND, ALONG THE BACK EDGE, EXTEND INTO TOUCHING CONTACT WITH THE BASE PLATE, SAID ATTACHING MEANS INCLUDING EARS PROJECTING LATERALLY FROM THE NECK AT OPPOSITE SIDES THEREOF AND AGAINST WHICH THE SIDE SKIRTS BEAR, SCREW MEANS WHICH THREAD INTO SAID EARS BEING PROVIDED FOR DRAWING SAID BEARING PORTIONS OF THE SIDE SKIRTS AGAINST THE EARS.
Claim 2
Dependent Claim
156 words
A ROOF VENTILATOR COMPRISING A BASE PLATE FORMED WITH A CENTRAL VENT APERTURE PROLONGED UPWARDLY BY A BAFFLE-PRODUCING NECK WHICH IS OPEN AT THE TOP, A SCREEN FOR SAID TOP OPENING, A HOOD FOR THE VENTILATOR, AND MEANS FOR REMOVABLY ATTACHING THE HOOD TO THE NECK SO THAT THE HOOD OVERLIES THE NECK IN A POSITION SPACED ABOVE SAID TOP OPENING AND WITH ITS EDGES EXTENDING OUTWARDLY BEYOND THE NECK AND TERMINATING IN DOWNTURNED SKIRTS WHICH, ALONG THE FRONT EDGE AND EACH OF THE TWO SIDES, DEPEND BELOW THE TOP LIMIT OF THE NECK WHILE BEING SPACED ABOVE THE BASE PLATE AND, ALONG THE BACK EDGE, EXTEND INTO TOUCHING CONTACT WITH THE BASE PLATE, SAID ATTACHING MEANS INCLUDING EARS PROJECTING LATERALLY FROM THE NECK AT OPPOSITE SIDES THEREOF AND AGAINST WHICH THE SIDE SKIRTS BEAR, SCREW MEANS WHICH THREAD INTO SAID EARS BEING PROVIDED FOR DRAWING SAID BEARING PORTIONS OF THE SIDE SKIRTS AGAINST THE EARS.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-06-10 | 1966-12-10 | 1967-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-10 | 1970-12-10 | 1971-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-10 | 1974-12-10 | 1975-06-11 | $7700.00 | Window Closed / Lapsed |