US3594449A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyurethane cross-linked chlorinated polyethylenes
Assignee: Motors Liquidation Co
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Filing: 1969-09-15
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Granted: 1971-07-20
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Expires: 1989-09-15
Abstract
Abstract A MIXTURE CONTAINING 50 TO 80 PARTS, BY WEIGHT, CHLORINATED POLYETHYLENE, 20 TO 50 PARTS, BY WEIGHT, OF AN ISOCYANATE TERMINATED PREPOLYMER AND SUFFICIENT ORGANIC DIAMINE TO PROVIDE A SLIGHT EXCESS OF AMINE GROUPS OVER ISOCYANATE GROUPS IS READILY MOLDABLE AND WILL CO-REACT AT NORMAL MOLDING TEMPERATURES TO FORM A POLYURETHANE CROSS-LINKED CHLORINATED POLYETHYLENE HAVING HIGH-STRENGTH AND OTHER DESIRABLE PHYSICAL PROPERTIES.
Inventors
- 👤 Charles R Binder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:42
CPC Classifications
C; C08; C08L; C08L23/00; C08L23/26; C08L23/28; C08L23/286; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/10; C08L75/00; C08L75/04
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) | 1974-07-19 | 1975-01-18 | 1975-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-07-19 | 1979-01-18 | 1979-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-07-19 | 1983-01-18 | 1983-07-20 | $7700.00 | Window Closed / Lapsed |