Patent US3770122A successfully refreshed from Google Patents.
US3770122A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible laminated package
Assignee: Glasurit Werke M Winkelmann GmbH
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Filing: 1971-05-14
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Granted: 1973-11-06
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Expires: 1991-05-14
Abstract
Abstract A flexible laminated package for highly viscous or pasty compositions containing organic solvents, wherein the package has a first multi-layer laminate and a second multi-layer laminate, each of which laminates are composites of at least two joined films wherein the inner film which is in direct contact with the viscous or pasty compositions is a polyalkylene film and the outer film is a polyamide and the multi-layer laminates are heat sealed at the edges.
Inventors
- 👤 G Thiele
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:35
CPC Classifications
B; B65; B65D; B65D75/00; B65D75/26; B29; B29C; B29C65/00; B29C65/02; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/13; B29C66/133; B29C66/40; B29C66/41; B29C66/43; B29C66/431; B29C66/4312; B29C66/432; B29C66/4322; B29C66/70; B29C66/71; B29C66/72; B29C66/723; B29C66/73; B29C66/731; B29C66/7311; B29C66/73115; B29C66/7318; B29C66/73185; B29C66/80; B29C66/83; B29C66/834; B29C66/8341; B29C66/83411; B29C66/84; B29C66/849; B29C65/04; B29C65/08; B29C65/18; B29C65/24; B29C65/26; B29C65/38; B29C65/74; B29C66/7232; B29C66/72321; B29K; B29K2705/00; B29K2705/02; B29L; B29L2009/00; B29L2031/00; B29L2031/712; B29L2031/7128; Y; Y10; Y10T; Y10T428/00; Y10T428/26; Y10T428/263; Y10T428/264; Y10T428/265; Y10T428/31504; Y10T428/31678; Y10T428/31681
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
103 words
A flexible laminated package enclosing highly viscous or pasty compositions comprising: a laminated system consisting of an inner layer being a polyalkylene film heat sealable at a temperature between 110* and 140* C with a layer thickness of 10-60 microns, an outer layer of the system being a diffusion proof polyamide film with a layer thickness of 5- 50 microns, an additional aluminum foil bonded on the outer layer of said polyamide film, said aluminum foil having a layer thickness of 5-35 microns, said package containing in contact with its inner layer of polyalkylene said highly viscous or pasty compositions containing organic solvents.
Claim 2
Dependent Claim
21 words
The flexible laminated package of claim 2, further comprising a protecting film, bonded to the outer surface of said aluminum foil.
Claim 3
Dependent Claim
37 words
The flexible laminated package of claim 2, wherein said polyamide film is selected from the group consisting of Nylon 6, Nylon 6-6, Nylon 3, Nylon 4, Nylon 7, Nylon 8, Nylon 9, Nylon 10 and Nylon 11.
Claim 4
Dependent Claim
24 words
The flexible laminated package of claim 4, wherein said polyalkylene film is selected from the group consisting of polyethylene, polypropylene, polyisopropylene, polybutylene and polyisobutylene.
Claim 5
Dependent Claim
21 words
The flexible laminated package of claim 5, wherein said polyalkylene film, said polyamide film and said aluminum foil are cemented together.
Claim 6
Dependent Claim
13 words
The flexible laminated package of claim 5, wherein said polyalkylene film is polyethylene.
References Cited (Backward Citations)
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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) | 1976-11-05 | 1977-05-07 | 1977-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-11-05 | 1981-05-07 | 1981-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-11-05 | 1985-05-07 | 1985-11-06 | $7700.00 | Window Closed / Lapsed |