Patent US1017968A successfully refreshed from Google Patents.
Patent US3850786A successfully refreshed from Google Patents.
US3850786A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adhesive products
Assignee: NORWOOD INDUSTRIES Inc A CORP OF PA
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Filing: 1973-03-12
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Granted: 1974-11-26
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Expires: 1993-03-12
Abstract
Abstract Composite adhesive products in roll form are provided by coating a film adhesive onto one side of doublecoated release paper, abrading the other surface of the release paper and partially removing the release coating therefrom, and winding the product in roll form. These products are useful in a process in which a pressure-sensitive adhesive tape is applied to the abraded surface of the release paper, thereby making separation of the release paper from the adhesive easily accomplished during use.
Inventors
- 👤 R Jeffries
- 👤 M Grover
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:53
CPC Classifications
C; C09; C09J; C09J7/00; C09J7/20; C09J7/21; C09J2400/00; C09J2400/20; C09J2400/28; C09J2400/283; Y; Y10; Y10T; Y10T428/00; Y10T428/28; Y10T428/2839; Y10T428/31
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
69 words
A COMPOSITED ADHESIVE PRODUCT COMPRISING FILM ADHESIVE INTERLEAVED WITH A COEXTENSIVE SHEET MATERIAL HAVING A RELEASE COATING ON BOTH MAJOR SURFACES, THE FIRST SURFACE OF SAID SHEET MATERIAL BEING IN CONTACT WITH SAID FILM ADHESIVE AND THE OTHER SURFACE OF SAID SHEET MATERIAL HAVING A PART OF ITS RELEASE COATING REMOVED BY BEING ABRADED, THE ABRADED RELEASE SURFACE BEING RENDERED MICROROUGH TO AN EXTENT SUCH THAT IT RETAINS THE
Claim 2
Dependent Claim
69 words
A COMPOSITED ADHESIVE PRODUCT COMPRISING FILM ADHESIVE INTERLEAVED WITH A COEXTENSIVE SHEET MATERIAL HAVING A RELEASE COATING ON BOTH MAJOR SURFACES, THE FIRST SURFACE OF SAID SHEET MATERIAL BEING IN CONTACT WITH SAID FILM ADHESIVE AND THE OTHER SURFACE OF SAID SHEET MATERIAL HAVING A PART OF ITS RELEASE COATING REMOVED BY BEING ABRADED, THE ABRADED RELEASE SURFACE BEING RENDERED MICROROUGH TO AN EXTENT SUCH THAT IT RETAINS THE
Claim 3
Dependent Claim
9 words
The adhesive product of claim 1 in roll form.
Claim 4
Dependent Claim
139 words
An adhesive-backed product comprising a. a film adhesive, b. an adherend member in adherent contact with one surface of said film adhesive, c. sheet material having release coating on both major surfaces, the first surface of said sheet material being in contact with the other surface of said film adhesive and the other surface of said sheet material having at least a part of its release coating removed by being abraded, the abraded release surface being rendered microrough to an extent such that it retains the necessary release characteristics to permit winding and unwinding of the product in roll form, without an additional interleaved release paper, while at the same time providing preferential adhesion to a pressure-sensitive adhesive tape applied thereto, and d. normally tacky pressure-sensitive adhesive tape in adherent contact with the abraded surface of said sheet material.
Claim 5
Dependent Claim
139 words
An adhesive-backed product comprising a. a film adhesive, b. an adherend member in adherent contact with one surface of said film adhesive, c. sheet material having release coating on both major surfaces, the first surface of said sheet material being in contact with the other surface of said film adhesive and the other surface of said sheet material having at least a part of its release coating removed by being abraded, the abraded release surface being rendered microrough to an extent such that it retains the necessary release characteristics to permit winding and unwinding of the product in roll form, without an additional interleaved release paper, while at the same time providing preferential adhesion to a pressure-sensitive adhesive tape applied thereto, and d. normally tacky pressure-sensitive adhesive tape in adherent contact with the abraded surface of said sheet material.
Claim 6
Dependent Claim
18 words
The adhesive-backed product of claim 3 in which said adherend member is a thin metal or plastic member.
Claim 7
Dependent Claim
9 words
The adhesive-backed product of claim 3 in roll form.
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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) | 1977-11-25 | 1978-05-27 | 1978-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-11-25 | 1982-05-27 | 1982-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-11-25 | 1986-05-27 | 1986-11-26 | $7700.00 | Window Closed / Lapsed |