Patent US3998014A successfully refreshed from Google Patents.
US3998014A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Protective edge configuration for structural sheeting
Assignee: United States Gypsum Co
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Filing: 1975-10-14
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Granted: 1976-12-21
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Expires: 1995-10-14
Abstract
Abstract A structural sheeting unit, such as fiberous ceiling tile, is disclosed comprising a panel kerfed around the edge thereof and having an extended edge portion provided on one side of said kerf, thereby protecting the remaining edge portion from damage during handling, said extended edge portion being weakened along a line corresponding to the remaining edge portion thereby enabling the extended portion to be easily broken away for installation.
Inventors
- 👤 Harold Bartels
- 👤 Albert F. Kuhr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:07
CPC Classifications
E; E04; E04B; E04B9/00; E04B9/04; E04B9/0435; E04B9/0464; Y; Y10; Y10T; Y10T428/00; Y10T428/15
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
72 words
A fibrous ceiling tile comprising a panel with an edge on the outside perimeter thereof, said panel kerfed around the edge thereof and having an extended edge portion provided on one side of said kerf, thereby protecting the remaining edge portion from damage during handling, said extended edge portion being weakened along a line corresponding to the remaining edge portion thereby enabling the extended portion to be easily broken away for installation.
Claim 2
Dependent Claim
72 words
A fibrous ceiling tile comprising a panel with an edge on the outside perimeter thereof, said panel kerfed around the edge thereof and having an extended edge portion provided on one side of said kerf, thereby protecting the remaining edge portion from damage during handling, said extended edge portion being weakened along a line corresponding to the remaining edge portion thereby enabling the extended portion to be easily broken away for installation.
Claim 3
Dependent Claim
18 words
A fibrous ceiling tile as in claim 1 wherein one side of the panel has a decorative surface.
Claim 4
Dependent Claim
25 words
A fibrous ceiling tile as in claim 2 wherein the extended edge portion is on the side of the edge opposite to the decorative surface.
Claim 5
Dependent Claim
27 words
A fibrous ceiling tile as in claim 1 wherein the extended edge portion is weakened by a groove cut therein and extending substantially along the length thereof.
Claim 6
Dependent Claim
13 words
A fibrous ceiling tile as in claim 4 wherein the groove is V-shaped.
Claim 7
Dependent Claim
80 words
A wood fiber ceiling tile having a front decorative surface, a back surface, and an edge extending around the perimeter thereof, and having a kerf extending around the edge thereof, said ceiling tile having extended edge portions on one side of the kerf, thereby protecting the remaining edge portion from damage during handling, and said extended edge portion weakened along a line correspondng to the remaining edge portion thereby enabling the extended portion to be easily broken away for installation.
Claim 8
Dependent Claim
80 words
A wood fiber ceiling tile having a front decorative surface, a back surface, and an edge extending around the perimeter thereof, and having a kerf extending around the edge thereof, said ceiling tile having extended edge portions on one side of the kerf, thereby protecting the remaining edge portion from damage during handling, and said extended edge portion weakened along a line correspondng to the remaining edge portion thereby enabling the extended portion to be easily broken away for installation.
Claim 9
Dependent Claim
26 words
A wood fiber ceiling tile as in claim 6 wherein the extended edge portion is on the side of the edge opposite to the decorative surface.
Claim 10
Dependent Claim
28 words
A wood fiber ceiling tile as in claim 6 wherein the extended edge portion is weakened by a groove cut therein and extending substantially along the length thereof.
Claim 11
Dependent Claim
14 words
A wood fiber ceiling tile as in claim 8 wherein the groove is V-shaped.
Claim 12
Independent Claim
72 words
A method for making a structural sheeting unit, said method comprising preparing a fibrous panel with an edge extending around the perimeter thereof, with a kerf in the edge thereof and with the edge on one side of the kerf extending beyond the remaining edge portion, and weakening the extended edge portion to enable it to be easily broken away, whereby the extended edge portion protects the remaining edge portion during handling.
Claim 13
Independent Claim
72 words
A method for making a structural sheeting unit, said method comprising preparing a fibrous panel with an edge extending around the perimeter thereof, with a kerf in the edge thereof and with the edge on one side of the kerf extending beyond the remaining edge portion, and weakening the extended edge portion to enable it to be easily broken away, whereby the extended edge portion protects the remaining edge portion during handling.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-12-21 | 1980-06-21 | 1980-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-12-21 | 1984-06-21 | 1984-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-12-21 | 1988-06-21 | 1988-12-21 | $7700.00 | Window Closed / Lapsed |