Patent US3301164A successfully refreshed from Google Patents.
US3301164A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hinged polypropylene louver set
Assignee: Westinghouse Electric Corp
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Filing: 1964-11-18
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Granted: 1967-01-31
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Expires: 1984-11-18
Abstract
No abstract record available.
Inventors
- 👤 Arthur H Eberhart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:48
CPC Classifications
F; F24; F24F; F24F13/00; F24F13/08; F24F13/10; F24F13/14; F24F13/15
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
160 words
AN ADJUSTABLE LOUVER VANE SET FORMED AS A ONE-PIECE STRUCTURE MOLDED FROM PLASTIC MATERIAL COMPRISING, A FRAME INCLUDING GENERALLY PARALLEL SPACED APART SIDE MEMBERS AND OPPOSITELY DISPOSED END CROSS MEMBERS, EACH OF SAID SIDE MEMBERS HAVING A PLURALITY OF SPACED INTEGRALLY MOLDED OPPOSITELY POSITIONED INWARDLY EXTENDING PROJECTIONS, A PLURALITY OF VANE MEMBERS INTEGRALLY MOLDED BETWEEN SAID SIDE MEMBERS AND CONNECTED BY RESPECTIVE FLEXIBLE PLASTIC WEB PORTIONS TO RESPECTIVE ONES OF SAID OPPOSITELY POSITIONED PROJECTIONS, A GANG BAR INTEGRALLY MOLDED TO INTERCONNECT RESPECTIVE END SURFACES OF SAID VANES IN A PLANE BEHIND THE PLANE OF THE SAID CONNECTING WEB PORTIONS OF SAID VANES TO THE PROJECTIONS OF SAID SIDE MEMBERS, SAID GANG BAR BEING CONNECTED TO THE RESPECTIVE ONES OF SAID VANES BY INTEGRALLY MOLDED FLEXIBLE PLASTIC WEB PORTIONS, SAID FRAME INCLUDING INTEGRALLY MOLDED SUPPORT MEANS TO RECEIVE MOVABLE OPERATOR MEANS ADAPTED TO EXTEND REARWARDLY FROM SAID SUPPORT MEANS TO CONNECT WITH SAID GANG BAR FOR EFFECTING PIVOTING OF SAID VANES.
Claim 2
Dependent Claim
160 words
AN ADJUSTABLE LOUVER VANE SET FORMED AS A ONE-PIECE STRUCTURE MOLDED FROM PLASTIC MATERIAL COMPRISING, A FRAME INCLUDING GENERALLY PARALLEL SPACED APART SIDE MEMBERS AND OPPOSITELY DISPOSED END CROSS MEMBERS, EACH OF SAID SIDE MEMBERS HAVING A PLURALITY OF SPACED INTEGRALLY MOLDED OPPOSITELY POSITIONED INWARDLY EXTENDING PROJECTIONS, A PLURALITY OF VANE MEMBERS INTEGRALLY MOLDED BETWEEN SAID SIDE MEMBERS AND CONNECTED BY RESPECTIVE FLEXIBLE PLASTIC WEB PORTIONS TO RESPECTIVE ONES OF SAID OPPOSITELY POSITIONED PROJECTIONS, A GANG BAR INTEGRALLY MOLDED TO INTERCONNECT RESPECTIVE END SURFACES OF SAID VANES IN A PLANE BEHIND THE PLANE OF THE SAID CONNECTING WEB PORTIONS OF SAID VANES TO THE PROJECTIONS OF SAID SIDE MEMBERS, SAID GANG BAR BEING CONNECTED TO THE RESPECTIVE ONES OF SAID VANES BY INTEGRALLY MOLDED FLEXIBLE PLASTIC WEB PORTIONS, SAID FRAME INCLUDING INTEGRALLY MOLDED SUPPORT MEANS TO RECEIVE MOVABLE OPERATOR MEANS ADAPTED TO EXTEND REARWARDLY FROM SAID SUPPORT MEANS TO CONNECT WITH SAID GANG BAR FOR EFFECTING PIVOTING OF SAID VANES.
References Cited (Backward Citations)
US3093060A
Cited
US3182579A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-30 | 1970-08-01 | 1971-01-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-30 | 1974-08-01 | 1975-01-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-30 | 1978-08-01 | 1979-01-31 | $7700.00 | Window Closed / Lapsed |