Patent US3427291A successfully refreshed from Google Patents.
US3427291A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymers having adjacent pendent esters groups
Assignee: EIDP Inc
•
Filing: 1966-04-29
•
Granted: 1969-02-11
•
Expires: 1986-04-29
Abstract
No abstract record available.
Inventors
- 👤 Joseph A Vasta
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 13:03
CPC Classifications
C; C09; C09D; C09D167/00; C09D167/08; C08; C08L; C08L61/00; C08L61/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
41 words
A COPOLYMER CONSISTING ESSENTIALLY OF A 50-95% BY WEIGHT POLYMERS ETHYLENICALLY UNSATURATED MONOMERS HAVING 2-16 CARBON ATOMS PER MONOMER UNIT AND B ABOUT 5-50% BY WEIGHT OF THE POLYMER OF POLYMERIZED ETHYLENICALLY UNSATURATED ESTERIFIED MONOMERS SELECTED FROM THE GROUP CONSISTING OF
Claim 2
Dependent Claim
41 words
A COPOLYMER CONSISTING ESSENTIALLY OF A 50-95% BY WEIGHT POLYMERS ETHYLENICALLY UNSATURATED MONOMERS HAVING 2-16 CARBON ATOMS PER MONOMER UNIT AND B ABOUT 5-50% BY WEIGHT OF THE POLYMER OF POLYMERIZED ETHYLENICALLY UNSATURATED ESTERIFIED MONOMERS SELECTED FROM THE GROUP CONSISTING OF
References Cited (Backward Citations)
US3002959A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-11 | 1972-08-12 | 1973-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-11 | 1976-08-12 | 1977-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-11 | 1980-08-12 | 1981-02-11 | $7700.00 | Window Closed / Lapsed |