US4042739A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Joint tape for dry wall construction having water-initiated adhesive which once activated, attached to, and dried on a surface resists removal under remoistening conditions
Assignee: Individual
•
Filing: 1976-11-03
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Granted: 1977-08-16
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Expires: 1996-11-03
Abstract
Abstract A joint tape for use in building construction utilizing dry wall panels which includes a tape body of water absorbent paper, sized and shaped for smooth joints between dry wall building panels, and a layer of water-activable polyvinyl acetate-based adhesive on one side of the tape for wetting and then adhering the tape to the surface of adjoining dry wall sheets covering the joint therebetween.
Inventors
- 👤 Earl A. Emal
- 👤 Jack L. Lambert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:51
CPC Classifications
E; E04; E04F; E04F13/00; E04F13/02; E04F13/04; E04F13/042; C; C09; C09J; C09J7/00; C09J7/20; C09J7/21; C09J7/30; C09J7/32; C09J2301/00; C09J2301/10; C09J2301/18; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24273; Y10T428/24322; Y10T428/24479; Y10T428/28; Y10T428/2813; Y10T428/283
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
110 words
A joint tape for covering and sealing the joints between adjacent wall board panels comprising: a thin, parallel sided, elongated strip of water absorbing paper tape; and a dried, water moistenable, polyvinyl acetate-based adhesive layer applied to completely cover the surface area of one side of said tape whereby the adhesive layer may be moistened with water to activate the adhesive layer so that the tape may be applied directly to the wall board joint to seal adjacent wall board panels together, said joint tape being further characterized in that after being moistened and applied to said panels and dried, the tape cannot be removed by remoistening the adhesive layer.
Claim 2
Dependent Claim
110 words
A joint tape for covering and sealing the joints between adjacent wall board panels comprising: a thin, parallel sided, elongated strip of water absorbing paper tape; and a dried, water moistenable, polyvinyl acetate-based adhesive layer applied to completely cover the surface area of one side of said tape whereby the adhesive layer may be moistened with water to activate the adhesive layer so that the tape may be applied directly to the wall board joint to seal adjacent wall board panels together, said joint tape being further characterized in that after being moistened and applied to said panels and dried, the tape cannot be removed by remoistening the adhesive layer.
Claim 3
Dependent Claim
29 words
A joint tape as defined in claim 1, wherein: said paper tape is perforated with a series of holes in longitudinal rows along the central portion of the strip.
Claim 4
Dependent Claim
71 words
A joint tape as defined in claim 1, wherein: the cross sectional configuration of said tape includes a flat surface covered with the layer of polyvinyl acetate-based adhesive and an opposite surface defined by a slightly thickened center portion of the tape so that as the tape is applied to tapered edges of adjacent wall board panels, the tape is bent slightly to cause the opposite surface to be generally flat.
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) | 1980-08-15 | 1981-02-14 | 1981-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-08-15 | 1985-02-14 | 1985-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-08-15 | 1989-02-14 | 1989-08-16 | $7700.00 | Window Closed / Lapsed |