Patent US3607540A successfully refreshed from Google Patents.
US3607540A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of applying pressure-sensitive sheeting
Assignee: Saint Gobain Abrasives Inc
•
Filing: 1968-06-11
•
Granted: 1971-09-21
•
Expires: 1988-06-11
Abstract
Abstract A porous surface to which a pressure-sensitive adhesive coated material is to be applied is first wet with a liquid to provide a temporary barrier film. The pressure-sensitive adhesive sheet material is then applied to the surface and because of such temporary liquid barrier film can be slid over and around on the porous surface to position it accurately in place. The temporary barrier film disappears by means of evaporation or absorption of the liquid into the porous substrate and the sheet material then becomes firmly affixed to the porous surface.
Inventors
- 👤 Leon E Hoogstoel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:51
CPC Classifications
B; B44; B44C; B44C1/00; B44C1/16; B44C1/165; B44C1/17; B44C1/1733; D; D06; D06N; D06N3/00; D06N3/04; D06N3/10
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
19 words
Method of applying a pressure-sensitive adhesive sheet material according to claim 1 wherein said liquid barrier layer comprises water.
Claim 2
Dependent Claim
21 words
Method of applying a pressure-sensitive adhesive sheet material according to claim 2 wherein said barrier layer further includes a wetting agent.
Claim 3
Dependent Claim
20 words
Method of applying a pressure-sensitive adhesive sheet material according to claim 3 wherein said pressure-sensitive adhesive is a rubber-based adhesive.
Claim 4
Dependent Claim
27 words
Method of applying a pressure-sensitive adhesive sheet material according to claim 4 wherein said substrate is sufficiently porous to permit the barrier layer to dissipate by absorption.
Claim 5
Dependent Claim
22 words
Method of applying a pressure-sensitive adhesive sheet material according to claim 5 wherein the absorption will occur in less than 5 minutes.
Claim 6
Dependent Claim
20 words
Method of applying a pressure-sensitive adhesive sheet material according to claim 6 wherein said wetting agent is sodium lauryl sulfate.
Claim 7
Dependent Claim
21 words
Method of applying a pressure-sensitive adhesive sheet material according to claim 6 wherein said wetting agent is trimethyl benzyl ammonium chloride.
Claim 8
Dependent Claim
19 words
Method of applying a pressure-sensitive adhesive sheet material according to claim 1 wherein the barrier layer dissipates by evaporation.
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) | 1974-09-20 | 1975-03-22 | 1975-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-09-20 | 1979-03-22 | 1979-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-09-20 | 1983-03-22 | 1983-09-21 | $7700.00 | Window Closed / Lapsed |