US3620872A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of making laminated web laminated material using a reusable carrier
Assignee: Robinson Waxed Paper Co Ltd
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Filing: 1968-09-10
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Granted: 1971-11-16
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Expires: 1988-09-10
Abstract
Abstract A method of processing web material supported on a carrier and subsequently separating the processed web and carrier.
Inventors
- 👤 Terence Frank Backwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:42
CPC Classifications
B; B05; B05D; B05D1/00; B05D1/28; B29; B29C; B29C63/00; B32; B32B; B32B27/00; B44; B44C; B44C3/00; B44C3/02
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
15 words
The method of claim 1 wherein the said nonself-supporting coating is of vinylidene chloride copolymer.
Claim 2
Dependent Claim
28 words
The method of claim 1 wherein the said nonself-supporting coating is selected from the group consisting of ethylene vinyl acetate copolymer, a polyolefin and a solvent based lacquer.
Claim 3
Dependent Claim
29 words
The method of claim 1 wherein the carrier is in the form of a web of a material selected from the group consisting of polyester film and paper/foil laminate.
Claim 4
Dependent Claim
27 words
The method of claim 1 wherein the carrier is an endless belt made of a material selected from the group consisting of polyester film and stainless steel.
Claim 5
Dependent Claim
31 words
The method of claim 1 wherein said layer of web-forming material is selected from the group consisting of polyolefins, ethylene/vinyl acetate copolymer, vinylidene chloride copolymer, paper, board and regenerated cellulose film.
Claim 6
Dependent Claim
14 words
The method of claim 1 wherein said carrier has an embossed or etched surface.
Claim 7
Dependent Claim
24 words
The method of claim 1 wherein said carrier is precoated with a substance to facilitate subsequent separation of said carrier and said self-supporting assembly.
Claim 8
Dependent Claim
27 words
The method of claim 1, further comprising the step of applying a layer of print prior to adhering said layer of web-forming material over said intermediate layer.
Claim 9
Dependent Claim
15 words
The method of claim 9 wherein the said nonself-supporting coating is of vinylidene chloride copolymer.
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) | 1974-11-15 | 1975-05-17 | 1975-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-15 | 1979-05-17 | 1979-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-15 | 1983-05-17 | 1983-11-16 | $7700.00 | Window Closed / Lapsed |