Patent US3214235A successfully refreshed from Google Patents.
US3214235A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crosslinked derivatives of polyhydroxy compounds and an ester of propiolic acid
Assignee: Monsanto Co
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Filing: 1961-03-17
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Granted: 1965-10-26
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Expires: 1981-03-17
Abstract
No abstract record available.
Inventors
- 👤 George L Wesp
- 👤 Lee A Miller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 06:58
CPC Classifications
C; C08; C08B; C08B15/00; C08B15/10; C08B31/00; C08B31/003; C08B37/00; C08F; C08F8/00; C08F8/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
30 words
THE CROSS-LINKED ADDITION PRODUCT OF AN ALIPHATIC POLYOL, HAVING AT LEAST THREE HYDROXY GROUPS AND CONTAINING ONLY CARBON, HYDROGEN AND OXYGEN, AND AN ESTER OF PROPIOLIC ACID HAVING THE FORMULA
Claim 2
Dependent Claim
30 words
THE CROSS-LINKED ADDITION PRODUCT OF AN ALIPHATIC POLYOL, HAVING AT LEAST THREE HYDROXY GROUPS AND CONTAINING ONLY CARBON, HYDROGEN AND OXYGEN, AND AN ESTER OF PROPIOLIC ACID HAVING THE FORMULA
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) | 1968-10-25 | 1969-04-26 | 1969-10-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-10-25 | 1973-04-26 | 1973-10-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-10-25 | 1977-04-26 | 1977-10-26 | $7700.00 | Window Closed / Lapsed |