US3242140A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Addition homo and coplymers from di and tri methyl allyl isocyanates
Assignee: EIDP Inc
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Filing: 1961-11-01
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Granted: 1966-03-22
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Expires: 1981-11-01
Abstract
No abstract record available.
Inventors
- 👤 Fred W Hoover
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 03:39
CPC Classifications
C; C08; C08F; C08F26/00; C07; C07C; C07C265/00; C08F10/00; C08F12/00; C08F12/02; C08F12/04; C08F12/14; C08F12/26; C08F26/02; C08F8/00; C08G; C08G18/00; C08G18/06; C08G18/28; C08G18/30; C08G18/32; C08G18/3225; C08G18/3228; C08G18/70; C08G18/72; C08G18/728; C08G18/74; C08G18/76; C08G18/7614; C08G18/7628; C08G18/765; C08G18/7657; C08G18/7692; C08G71/00; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31536; Y10T428/31551; Y10T428/31591
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
18 words
AN ETHYLENIC ADDITION HOMOPOLYMER OF AN ISOCYANATE SELECTED FROM THE GROUP CONSISTING OF A,A-DIMETHYLALLYL ISOCYANATE AND A,A,B-TRIMETHYLALLYL ISOCYANATE.
Claim 2
Dependent Claim
18 words
AN ETHYLENIC ADDITION HOMOPOLYMER OF AN ISOCYANATE SELECTED FROM THE GROUP CONSISTING OF A,A-DIMETHYLALLYL ISOCYANATE AND A,A,B-TRIMETHYLALLYL ISOCYANATE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-21 | 1969-09-20 | 1970-03-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-21 | 1973-09-20 | 1974-03-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-21 | 1977-09-20 | 1978-03-22 | $7700.00 | Window Closed / Lapsed |