US3724156A
Expired / Lapsed
US
⏱️ 0.0 years remaining
A lining board
Assignee: LECTUS AB
•
Filing: 1971-03-02
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Granted: 1973-04-03
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Expires: 1991-03-02
Abstract
Abstract A prefabricated board, such as gypsum board or fiber board, with a facing of paper, fabric, plastics or like material affixed thereto, is provided with an edge corrector strip which is fastened along the edge of the board before the facing layer is adhered thereto. The strip preferably is of L-shape and one limb portion thereof lies flat against the rear side of the board while the other limb portion thereof lies along the edge face of the board, the facing material being wrapped or folded about the edge corrector strip.
Inventors
- 👤 P Helmerson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:41
CPC Classifications
E; E04; E04C; E04C2/00; E04C2/02; E04C2/04; E04C2/043; E04C2/44; E04C2/52; E04C2/526; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31971
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
91 words
A prefabricated lining board, such as gypsum board or fiberboard, which is intended for mounting on partition and like walls and are provided on the surfaces facing the room with a finished surface layer in the form of wall paper or like material, wherein edge corrector strips are arranged within the finished surface layer of the board and are formed by substantially L-shaped bars one limb portion of which is secured to the rear side of the board while the other limb portion extends along the edge surface of the board.
Claim 2
Dependent Claim
91 words
A prefabricated lining board, such as gypsum board or fiberboard, which is intended for mounting on partition and like walls and are provided on the surfaces facing the room with a finished surface layer in the form of wall paper or like material, wherein edge corrector strips are arranged within the finished surface layer of the board and are formed by substantially L-shaped bars one limb portion of which is secured to the rear side of the board while the other limb portion extends along the edge surface of the board.
Claim 3
Dependent Claim
25 words
A lining board as claimed in claim 1, wherein the two limb portions of the L-shaped bar make a slightly obtuse angle with one another.
Claim 4
Dependent Claim
30 words
A lining board as claimed in claim 1, wherein the limb portion serving as a seal is resilient in relation to the limb portion serving to fasten the L-shaped bar.
References Cited (Backward Citations)
CA612720A
Cited
US1355756A
Cited
US2130788A
Cited
US2863180A
Cited
US3141206A
Cited
US3350257A
Cited
US3226284A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-04-02 | 1976-10-02 | 1977-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-04-02 | 1980-10-02 | 1981-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-04-02 | 1984-10-02 | 1985-04-03 | $7700.00 | Window Closed / Lapsed |