US3687801A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adhesive system
Assignee: POLYMER EXTRUDED PRODUCTS Inc A CORP OF DE
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Filing: 1970-08-24
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Granted: 1972-08-29
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Expires: 1990-08-24
Abstract
Abstract AN ADHESIVE SYSTEM COMPRISING A SOLUTION OF:A PARTICULAR ADDITION POLYMER AND A PARTICULAR TYPE OF POLYISOCYANATE, A METHOD OF LAMINATING AN ACRYLIC FILM TO A CELLULOSIC SUBSTRATE USING SAID ADHESIVE SYSTEM AND THE LAMINATED PRODUCT.
Inventors
- 👤 Richard Derby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:45
CPC Classifications
B; B32; B32B; B32B21/00; B32B21/04; B32B21/08; B32B27/00; B32B21/02; B32B27/30; B32B27/308; C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/62; C08G18/6216; C08G18/622; C08G18/6237; B32B2309/00; B32B2309/02; B32B2451/00; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31573; Y10T428/31591; Y10T428/31855; Y10T428/31938; Y10T428/31971
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-08-29 | 1976-02-28 | 1976-08-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-29 | 1980-02-28 | 1980-08-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-29 | 1984-02-28 | 1984-08-29 | $7700.00 | Window Closed / Lapsed |