Patent US4569171A successfully refreshed from Google Patents.
US4569171A
Expired / Lapsed
US
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Base trim system for partition corners
Assignee: United States Gypsum Co
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Filing: 1985-01-25
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Granted: 1986-02-11
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Expires: 2005-01-25
Abstract
Abstract A base trim piece for the corner of intersecting walls has two upright wings angularly joined at a first edge of each, a recessed flange joined to the opposite edge of each wing, and a planar hook projecting upwardly from each such flange to lie in a plane between the vertical planes of the corresponding wings and flanges. The hook acts as a fastener for an abutting planar base trim piece.
Inventors
- 👤 Albert F. Kuhr
- 👤 Alan C. Wendt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 13:54
CPC Classifications
E; E04; E04B; E04B2/00; E04B2/74; E04B2/82; E04F; E04F19/00; E04F19/02; E04F19/04; E04F19/0459; E04F19/0468; E04F19/0486
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
73 words
A base trim for a partition corner, said trim comprising two planar upright wings angularly joined at a first edge of each, a recessed lower flange connected to an opposite edge of each wing and extending laterally away from the associated wing, an upwardly oriented planar hook extending above each lower flange in a plane parallel to but between the vertical planes of the flange and the wing with which it is associated.
Claim 2
Dependent Claim
73 words
A base trim for a partition corner, said trim comprising two planar upright wings angularly joined at a first edge of each, a recessed lower flange connected to an opposite edge of each wing and extending laterally away from the associated wing, an upwardly oriented planar hook extending above each lower flange in a plane parallel to but between the vertical planes of the flange and the wing with which it is associated.
Claim 3
Dependent Claim
34 words
The trim of claim 1 characterized further by a horizontal return web joined at an angle to the upper edge of the lower flange, said web being between the planar hook and the flange.
Claim 4
Dependent Claim
18 words
The trim of claim 1 characterized further by a recessive web between the lower flange and the wing.
Claim 5
Dependent Claim
15 words
The trim of claim 3 wherein the planar hook is connected to the recessive web.
Claim 6
Dependent Claim
42 words
The trim of claim 1 characterized further by an upper flange connected to the opposite edge of each wing, said upper flange being co-planar and co-directional with the lower flange, and the planar hook being interposed between the upper and lower flanges.
Claim 7
Dependent Claim
16 words
The trim of claim 5 characterized by a recessive web between a wing and its flanges.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-02-10 | 1989-08-12 | 1990-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-02-10 | 1993-08-12 | 1994-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-02-10 | 1997-08-12 | 1998-02-11 | $7700.00 | Window Closed / Lapsed |