Patent US4851287A successfully refreshed from Google Patents.
US4851287A
Expired / Lapsed
US
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Laminate comprising three sheets of a thermoplastic resin
Assignee: Syensqo Specialty Polymers USA LLC
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Filing: 1988-01-28
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Granted: 1989-07-25
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Expires: 2008-01-28
Abstract
Abstract Described herein is cookware formed from a laminate, said laminate comprising three sheets made from a thermoplastic resin, the inside sheet made from a thermoplastic resin having a lower use temperature than the two outside sheets.
Inventors
- 👤 Tyler F. Hartsing, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 16:26
CPC Classifications
A; A47; A47J; A47J36/00; A47J36/02; A47J36/04; B; B32; B32B; B32B27/00; B32B27/06; B32B27/08; Y; Y10; Y10T; Y10T428/00; Y10T428/13; Y10T428/1352; Y10T428/25; Y10T428/252; Y10T428/29; Y10T428/2982; Y10T428/31504; Y10T428/31507; Y10T428/31533; Y10T428/31786; Y10T428/31797
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
29 words
A laminate comprising at least three sheets, an inside sheet made from the following polymers: ##STR51## or combinations thereof, and two outside sheets made from the following polymer: ##STR52##
Claim 2
Dependent Claim
29 words
A laminate comprising at least three sheets, an inside sheet made from the following polymers: ##STR51## or combinations thereof, and two outside sheets made from the following polymer: ##STR52##
Claim 3
Dependent Claim
14 words
A laminate as defined in claim 1, wherein the thermoplastic resin contains glass spheres.
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) | 1992-07-24 | 1993-01-23 | 1993-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-07-24 | 1997-01-23 | 1997-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-07-24 | 2001-01-23 | 2001-07-25 | $7700.00 | Window Closed / Lapsed |