US2562852A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of preparing heteropolymers of unsaturated carboxylic acids with esters of unsaturated alcohols
Assignee: Monsanto Chemicals Ltd
•
Filing: 1947-12-06
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Granted: 1951-07-31
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Expires: 1967-12-06
Abstract
No abstract record available.
Inventors
- 👤 Baer Massimo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 12:06
CPC Classifications
C; C08; C08F; C08F218/00; C08F218/02; C08F218/04; C08F22/00; C08F22/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
24 words
IN A PROCESS FOR COPOLYMERIZING AN ESTER OF A MONOCARBOXYLIC ACID AND AN ALCOHOL CONTAINING A CH2=C< GROUP WITH A COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
24 words
IN A PROCESS FOR COPOLYMERIZING AN ESTER OF A MONOCARBOXYLIC ACID AND AN ALCOHOL CONTAINING A CH2=C< GROUP WITH A COMPOUND OF THE FORMULA
References Cited (Backward Citations)
GB376479A
Cited
US2047398A
Cited
US2064565A
Cited
US2286062A
Cited
US2345659A
Cited
US2378629A
Cited
US2430313A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-07-30 | 1955-01-29 | 1955-07-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-07-30 | 1959-01-29 | 1959-07-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-07-30 | 1963-01-29 | 1963-07-31 | $7700.00 | Window Closed / Lapsed |