US4490953A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Drywall corner bracket
Assignee: Individual
•
Filing: 1981-10-13
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Granted: 1985-01-01
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Expires: 2001-10-13
Abstract
Abstract A metal corner bracket for use in drywall construction in corners on windows and archways to eliminate subsequent cracking at the corners.
Inventors
- 👤 Michael L. Meola
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 15:04
CPC Classifications
E; E04; E04F; E04F13/00; E04F13/02; E04F13/04; E04F13/06; E04F13/068; E04F2013/063
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
137 words
A bracket formed from a flat blank of metal for a corner of an arch formed by a jack and a header having thereon drywall panels affixed to the jack and header comprising: (a) a face portion having first and second coplanar legs extending at right angles to one another; (b) a first portion extending in a plane normal to the face portion and to the first leg; and (c) a second portion extending in a plane normal to the second leg; (d) said first portion and said second portion being integral with said face portion but formed by cutting and bending of the blank intermediate said first and second legs; wherein the first leg and the first portion are affixed to the header, and the second leg and the second portion are affixed to the jack.
Claim 2
Dependent Claim
137 words
A bracket formed from a flat blank of metal for a corner of an arch formed by a jack and a header having thereon drywall panels affixed to the jack and header comprising: (a) a face portion having first and second coplanar legs extending at right angles to one another; (b) a first portion extending in a plane normal to the face portion and to the first leg; and (c) a second portion extending in a plane normal to the second leg; (d) said first portion and said second portion being integral with said face portion but formed by cutting and bending of the blank intermediate said first and second legs; wherein the first leg and the first portion are affixed to the header, and the second leg and the second portion are affixed to the jack.
Claim 3
Dependent Claim
23 words
A bracket of claim 1 having a bead portion extending along the edge connecting the face portion with the first and second portions.
References Cited (Backward Citations)
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US1979701A
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US2274662A
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US2442929A
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US2663390A
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US2821754A
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1988-01-01 | 1988-07-02 | 1989-01-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-01-01 | 1992-07-02 | 1993-01-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-01-01 | 1996-07-02 | 1997-01-01 | $7700.00 | Window Closed / Lapsed |