US3155461A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Frame members
Assignee: Allegheny Ludlum Steel Corp
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Filing: 1961-06-19
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Granted: 1964-11-03
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Expires: 1981-06-19
Abstract
No abstract record available.
Inventors
- 👤 Joseph M Hunt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:01
CPC Classifications
E; E04; E04C; E04C3/00; E04C3/02; E04C3/29; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9265; Y10S428/927; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49908; Y10T29/49915; Y10T29/49922; Y10T428/00; Y10T428/12; Y10T428/12306; Y10T428/12313; Y10T428/12319; Y10T428/12493; Y10T428/12736; Y10T428/1275; Y10T428/12757
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
227 words
A COMPOSITE FRAME MEMBER OF ALUMINUM AND STAINLESS STEEL FOR DOORS, WINDOWS, ARCHITECTURAL MEMBERS, AND BUILDING COMPONENTS COMPRISING, IN COMBINATION, A LONGITUDINALLY EXTENDING EXTRUSION OF ALUMINUM HAVING A PREDETERMINED CROSS SECTION CONFIGUATION WITH FLAT MEANS THEREON OF PREDETERMINED WIDTH AND HAVING OPPOSED LONGITUDINALLY EXTENDING, INWARDLY TURNED FLANGE MEMBERS DISPOSED ADJACENT THE OUTER LONGITUDINALLY EXTENDING EDGES OF AND SUBSTANTIALLY PARALLEL TO SAID FACE MEANS TO FORM OPPOSED GROOVES THEREON, A LONGITUDINALLY EXTENDING FLAT STRIP OF STAINLESS STEEL HAVING A PREDETERMINED THICKNESS AND BEING OF A WIDTH SUBSTANTIALLY EQUAL TO THE WIDTH OF SAID FACE MEANS, SAID FLAT STRIP BEING DISPOSED IN SEATED RELATION IN SAID OPPOSED GROOVES, SAID FLANGE MEMBERS BEING INITIALLY DISPOSED SUBSTANTIALLY PARALLEL TO SAID FLAT FACE MEANS BUT SPACED THEREFROM TO PROVIDE SAID GROOVES WITH A WIDTH GREATER THAN 10% IN EXCESS OF SAID PREDTERMINED THICKNESS OF SAID FLAT STRIP TO PROVIDE CLEARANCE TO RECEIVE SAID STRIP IN SAID SEATED RELATIONTHEREWITH, SAID FLANGE MEMBERS BEING DEFORMED WHEN SAID FLAT STRIP IS SEATED IN SAID OPPOSED GROOVES TO SEAT THE OUTER EDGES OF SAID FLANGE MEMBERS INTO FRICTIONAL ENGAGEMENT WITH SAID FLAT STRIP TO MAINTAIN SAID FLAT STRIP SEATED IN SAID GROOVES AGAINST SAID FACE MEANS TO THEREBY PROVIDE A FLAT FACING OF STAINLESS STEEL OVER SAID FACE MEANS OF THE ALUMINUM EXTRUSION, SAID DEFORMED OUTER EDGES OF SAID FLANGE MEMBERS BEING IN SUBSTANTIALLY STRAIGHT LINES.
References Cited (Backward Citations)
US1730034A
Cited
US2270278A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-11-03 | 1968-05-04 | 1968-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-03 | 1972-05-04 | 1972-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-03 | 1976-05-04 | 1976-11-03 | $7700.00 | Window Closed / Lapsed |