US2497705A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Copolymerization product of n-vinyl lactams and polymerizable esters, and process for making same
Assignee: EIDP Inc
•
Filing: 1946-10-16
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Granted: 1950-02-14
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Expires: 1966-10-16
Abstract
No abstract record available.
Inventors
- 👤 James H Werntz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:20
CPC Classifications
C; C08; C08F; C08F226/00; C08F226/06; C08F226/10; Y; Y10; Y10S; Y10S424/00; Y10S424/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
64 words
THE COPOLYMERIZATION PRODUCT OF A N-VINYL LACTAM AND A POLYMERIZABLE ESTER OF A MONOCARBOXYLIC ACID IN THE PROPORTION OF FROM 5 TO 30 MOLES OF THE N-VINYL LACTAM FOR EACH MOLE OF SAID ESTER, SAID ESTER CONTAINING 8 TO 30 CARBON ATOMS, AND BEING SELECTED FROM THE GROUP CONSISTING OF VINYL ESTERS OF ALIPHATIC MONOCARBOXYLIC ACIDS AND ALKYL ESTERS OF ACRYLIC AND METHACRYLIC ACIDS.
Claim 2
Dependent Claim
64 words
THE COPOLYMERIZATION PRODUCT OF A N-VINYL LACTAM AND A POLYMERIZABLE ESTER OF A MONOCARBOXYLIC ACID IN THE PROPORTION OF FROM 5 TO 30 MOLES OF THE N-VINYL LACTAM FOR EACH MOLE OF SAID ESTER, SAID ESTER CONTAINING 8 TO 30 CARBON ATOMS, AND BEING SELECTED FROM THE GROUP CONSISTING OF VINYL ESTERS OF ALIPHATIC MONOCARBOXYLIC ACIDS AND ALKYL ESTERS OF ACRYLIC AND METHACRYLIC ACIDS.
References Cited (Backward Citations)
US2335454A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-13 | 1953-08-15 | 1954-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-13 | 1957-08-15 | 1958-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-13 | 1961-08-15 | 1962-02-14 | $7700.00 | Window Closed / Lapsed |