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US3648421A Expired / Lapsed US ⏱️ 0.0 years remaining

Door frame brace

Assignee: Individual
•
Filing: 1969-10-07
•
Granted: 1972-03-14
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Expires: 1989-10-07
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Abstract

Abstract A unique brace for supporting metal door frames during construction therearound of masonry walls. The brace comprises a characterized hook section which because of its conforming shape removably but securely fastens to accessible portions of the frame. Means are provided for readily attaching 2 X 4''s to the hook section to extend the hook section to a supporting surface.

Inventors

  • 👤 Willard L Bjork

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-29 14:53
CPC Classifications
E; E04; E04F; E04F21/00; E04F21/0007; E04F21/0015

Claims Analysis

Total Claims: 2
Claim 1
Independent Claim 289 words
The door frame brace for temporarily supporting prefabricated door frames while a wall is constructed around the frames, said brace comprising: a single hook section for removably securing said brace to said frame, said hook section means being an integral unit fabricated from one piece of material, an extension section integral to said hook section for attaching said hook section to one end of extending means to extend said hook section for propping it against a supporting surface to thereby support said prefabricated door frame while said wall is being constructed around said door frame and readily enabling the removal of said brace from the door frame after the construction of said wall, said hook section comprising a conforming section arranged to be contiguous to a defined portion of the door frame while said frame is braced, locking means integral to and extending at an acute angle from said conforming section to fit around the defined portions of the door frame to lock said brace thereto, a biased section extending between said extension section and the conforming sEction, said biased section being at an obtuse angle from said extension section, the angle between said conforming section and said biased section being no smaller than a right angle, said extending means being non-attached at the other end thereof to enable propping said other end against said supporting surface to thereby facilitate removing said brace means after construction of the wall and also enabling varying the angle between said extending means and the supporting surface to implement the grasping of the door frame by the hook section, and wherein the junction of said bias section and said conforming section is scored to enable detaching said bias section from said conforming section.
Claim 2
Dependent Claim 289 words
The door frame brace for temporarily supporting prefabricated door frames while a wall is constructed around the frames, said brace comprising: a single hook section for removably securing said brace to said frame, said hook section means being an integral unit fabricated from one piece of material, an extension section integral to said hook section for attaching said hook section to one end of extending means to extend said hook section for propping it against a supporting surface to thereby support said prefabricated door frame while said wall is being constructed around said door frame and readily enabling the removal of said brace from the door frame after the construction of said wall, said hook section comprising a conforming section arranged to be contiguous to a defined portion of the door frame while said frame is braced, locking means integral to and extending at an acute angle from said conforming section to fit around the defined portions of the door frame to lock said brace thereto, a biased section extending between said extension section and the conforming sEction, said biased section being at an obtuse angle from said extension section, the angle between said conforming section and said biased section being no smaller than a right angle, said extending means being non-attached at the other end thereof to enable propping said other end against said supporting surface to thereby facilitate removing said brace means after construction of the wall and also enabling varying the angle between said extending means and the supporting surface to implement the grasping of the door frame by the hook section, and wherein the junction of said bias section and said conforming section is scored to enable detaching said bias section from said conforming section.

References Cited (Backward Citations)

US1508392A Cited
US1716779A Cited
US1587202A Cited
US2032132A Cited
US2914813A Cited
FR1199190A Cited
US3226781A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1975-03-14 1975-09-13 1976-03-14 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1979-03-14 1979-09-13 1980-03-14 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1983-03-14 1983-09-13 1984-03-14 $7700.00 Window Closed / Lapsed

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