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US3168771A Expired / Lapsed US ⏱️ 0.0 years remaining

Adjustable wing t form

Assignee: Individual
•
Filing: 1963-01-28
•
Granted: 1965-02-09
•
Expires: 1983-01-28
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Abstract

No abstract record available.

Inventors

  • 👤 Alfred T Nelson

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 23:23
CPC Classifications
E; E04; E04G; E04G11/00; E04G11/36; E04G11/40; E04G11/46

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 188 words
A WING T CONCRETE FORM COMPRISING A PAIR OF FRAMES OF INVERTED L-SHAPE HAVING COMFRONTING SPACED APART VERTICAL LEGS FOR MOLDING THE VERTICAL WEB PORTION OF A T-SHAPED BEAM AND HAVING OPPOSITELY DISPOSED TRANSVERSE LEGS FOR MOLDING THE WING PORTIONS OF THE T, MEANS FOR PIVOTING SAID FRAMES ABOUT THE LOWER ENDS OF THEIR VERTICAL LEGS FOR BREAKING THE FRAMES AWAY FROM A MOLDED BEAM, MEANS SUPPORTING ONE OF SAID FRAMES FOR MOVEMENT LATERALLY TOWARD AND AWAY FROM THE OTHER FRAME, AND TRANSVERSELY EXTENDING ADJUSTABLE ANGLE WING FORMS PIVOTALLY CONNECTED AT THEIR INNER EDGES WITH SAID LFRAMES: SAID WING FORM PIVOTAL CONNECTIONS EACH COMPRISING A FORM PLATE ON SAID VERTICAL LEG HAVING A BACKTURNED FLANGE FORMING A CORNER ALONG THE UPPER EDGE OF THE PLATE, A FORM PLATE ON SAID WING FORM HAVING A BACKTURNED FLANGE FORMING A CORNER ALONG THE INNER EDGE OF THE PLATE, A RUBBER SEAL STRIP BETWEEN SAID FLANGES SPRING CLAMPS CLAMPING SAID CORNERS OF SAID PLATES AGAINST OPPOSITE SIDES OF SAID SEAL STRIP FOR RELATIVE PIVOTAL MOVEMENT, AND A BOLT CLAMP SECURING SAID L-FRAME AND SAID WING FORM TOGETHER IN ADJUSTED ANGULAR POSITION.
Claim 2
Dependent Claim 188 words
A WING T CONCRETE FORM COMPRISING A PAIR OF FRAMES OF INVERTED L-SHAPE HAVING COMFRONTING SPACED APART VERTICAL LEGS FOR MOLDING THE VERTICAL WEB PORTION OF A T-SHAPED BEAM AND HAVING OPPOSITELY DISPOSED TRANSVERSE LEGS FOR MOLDING THE WING PORTIONS OF THE T, MEANS FOR PIVOTING SAID FRAMES ABOUT THE LOWER ENDS OF THEIR VERTICAL LEGS FOR BREAKING THE FRAMES AWAY FROM A MOLDED BEAM, MEANS SUPPORTING ONE OF SAID FRAMES FOR MOVEMENT LATERALLY TOWARD AND AWAY FROM THE OTHER FRAME, AND TRANSVERSELY EXTENDING ADJUSTABLE ANGLE WING FORMS PIVOTALLY CONNECTED AT THEIR INNER EDGES WITH SAID LFRAMES: SAID WING FORM PIVOTAL CONNECTIONS EACH COMPRISING A FORM PLATE ON SAID VERTICAL LEG HAVING A BACKTURNED FLANGE FORMING A CORNER ALONG THE UPPER EDGE OF THE PLATE, A FORM PLATE ON SAID WING FORM HAVING A BACKTURNED FLANGE FORMING A CORNER ALONG THE INNER EDGE OF THE PLATE, A RUBBER SEAL STRIP BETWEEN SAID FLANGES SPRING CLAMPS CLAMPING SAID CORNERS OF SAID PLATES AGAINST OPPOSITE SIDES OF SAID SEAL STRIP FOR RELATIVE PIVOTAL MOVEMENT, AND A BOLT CLAMP SECURING SAID L-FRAME AND SAID WING FORM TOGETHER IN ADJUSTED ANGULAR POSITION.

References Cited (Backward Citations)

US727272A Cited
US1688627A Cited
US2495100A Cited
US3092886A Cited
US3071837A Cited
US3075240A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1968-02-09 1968-08-10 1969-02-09 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1972-02-09 1972-08-10 1973-02-09 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1976-02-09 1976-08-10 1977-02-09 $7700.00 Window Closed / Lapsed

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