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US3116271A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymerization of esters of acrylic and methacrylic acid
Assignee: FMC Corp
•
Filing: 1959-01-30
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Granted: 1963-12-31
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Expires: 1979-01-30
Abstract
No abstract record available.
Inventors
- 👤 William R Watt
- 👤 Bengt G Ranby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 03:13
CPC Classifications
C; C08; C08F; C08F20/00; C08F20/02; C08F20/10; C08F20/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
19 words
A METHOD OF PRODUCING NORMALLY SOLID HOMOPOLYMER MATERIAL BY POLYMERIZING AT REFLUXING TEMPERATURE A COMPOUND HAVING THE GENERAL FORMULA
Claim 2
Independent Claim
19 words
A METHOD OF PRODUCING NORMALLY SOLID HOMOPOLYMER MATERIAL BY POLYMERIZING AT REFLUXING TEMPERATURE A COMPOUND HAVING THE GENERAL FORMULA
References Cited (Backward Citations)
US2400477A
Cited
US2433866A
Cited
GB593797A
Cited
US2608555A
Cited
GB785053A
Cited
US2881156A
Cited
US2910461A
Cited
US2846427A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-12-30 | 1967-07-01 | 1967-12-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-30 | 1971-07-01 | 1971-12-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-30 | 1975-07-01 | 1975-12-31 | $7700.00 | Window Closed / Lapsed |