US3574048A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adhesive for system copper-polyethylene terephthalate laminates
Assignee: GT Schjeldahl Co
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Filing: 1967-06-07
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Granted: 1971-04-06
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Expires: 1987-06-07
Abstract
Abstract A LAMINATE SYSTEM INCLUDING COPPER AND POLYETHYLENE TEREPHTHALATE, PREFERABLY BI-AXIALLY ORIENTED POLYETHYLENE TEREPHTHALATE, THE MEMBERS FORMING THE LAMINATE BEING BONDED TOGETHER BY A FILM OF AN ADHESIVE WHICH CONSISTS ESSENTIALLY OF A POLYESTER RESIN MODIFIED WITH POLYMETHYLENE POLYPHENYLISOCYANATE. THE PREFERRED POLYESTER RESIN COMPOSITION IS PREPARED FROM A LINEAR SATURATED COPOLYMER COMPOSITION CONSISTING OF THE ETHYL ESTERS OF SEBACIC AND TEREPHTHALIC ACIDS.
Inventors
- 👤 Kenneth W Klimisch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:52
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/70; C08G18/72; C08G18/74; C08G18/76; C08G18/7657; C08G18/7664; C08G18/28; C08G18/40; C08G18/42; C08G18/4205; C08G18/4208; C08G18/4211; C08G18/4216; C09; C09J; C09J175/00; C09J175/04; C09J175/06; C08L; C08L2666/00; C08L2666/28; C08L2666/32; H; H05; H05K; H05K3/00; H05K3/38; H05K3/386; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31565; Y10T428/31605; Y10T428/31678; Y10T428/31786
Claims Analysis
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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) | 1974-04-05 | 1974-10-05 | 1975-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-04-05 | 1978-10-05 | 1979-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-04-05 | 1982-10-05 | 1983-04-06 | $7700.00 | Window Closed / Lapsed |