Patent US3433771A successfully refreshed from Google Patents.
US3433771A
Expired / Lapsed
US
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Polyurethane adhesives based on diisocyanates and an epoxy esterdibasic acid adduct
Assignee: EIDP Inc
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Filing: 1965-12-02
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Granted: 1969-03-18
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Expires: 1985-12-02
Abstract
No abstract record available.
Inventors
- 👤 Joseph A Vasta
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:39
CPC Classifications
C; C08; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/40; C08G18/42; C08G18/4205; C08G18/423; C08G18/4291; C09; C09J; C09J175/00; C09J175/04; C09J175/06; Y; Y10; Y10S; Y10S528/00; Y10S528/905
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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CA634292A
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US2567842A
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US2779783A
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US3300420A
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US3184439A
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NL270073A
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US3328356A
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US3317480A
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US3314923A
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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) | 1972-03-17 | 1972-09-16 | 1973-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-17 | 1976-09-16 | 1977-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-17 | 1980-09-16 | 1981-03-18 | $7700.00 | Window Closed / Lapsed |