US3759778A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyurethane structural adhesive
Assignee: Monsanto Research Corp
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Filing: 1971-07-22
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Granted: 1973-09-18
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Expires: 1991-07-22
Abstract
Abstract AN ADHESIVE COMPOSITION COMPRISING (A) AN ISOCYANATETERMINATED PREPOLYMER OBTAINED BY REACTION OF A POLYTETRAMETHYLENE ETHER GLYCOL AND AN UNSYMMETRICAL HINDERED AROMATIC DIISOCYANATE, AND (B) 4,4''-METHYLENEBIS(2-CHLOROANILINE).
Inventors
- 👤 Clung C Mc
- 👤 D Glasgow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 12:21
CPC Classifications
B; B32; B32B; B32B15/00; B32B15/04; B32B15/043; C; C08; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/10; B32B15/20; B32B7/00; B32B7/04; B32B7/12; C08G18/28; C08G18/40; C08G18/48; C08G18/4854; C08G18/70; C08G18/72; C08G18/74; C08G18/76; C09; C09J; C09J175/00; C09J175/04; C09J175/12; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31605; Y10T428/31678; Y10T428/31692; Y10T428/31699
Claims Analysis
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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) | 1976-09-17 | 1977-03-19 | 1977-09-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-17 | 1981-03-19 | 1981-09-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-17 | 1985-03-19 | 1985-09-18 | $7700.00 | Window Closed / Lapsed |