Patent US2585230A successfully refreshed from Google Patents.
US2585230A
Expired / Lapsed
US
⏱️ 0.0 years remaining
N-fluoroalkyl-n-vinylalkanamides and preparation thereof
Assignee: Eastman Kodak Co
•
Filing: 1949-11-16
•
Granted: 1952-02-12
•
Expires: 1969-11-16
Abstract
No abstract record available.
Inventors
- 👤 Harry W Coover
- 👤 Joseph B Dickey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 14:19
CPC Classifications
C; C08; C08F; C08F26/00; C08F26/02
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
11 words
N - FLUOROALKYL - N - VINYLALKANAMIDES REPRESENTED BY THE FORMULA:
Claim 2
Dependent Claim
11 words
N - FLUOROALKYL - N - VINYLALKANAMIDES REPRESENTED BY THE FORMULA:
Claim 3
Dependent Claim
8 words
POLYMERS OF THE COMPOUNDS DEFINED IN CLAIM 1.
Claim 4
Dependent Claim
8 words
A PROCESS FOR PREPARING N-FLUOROALKYL-NVINYLALKANAMIDES HAVING THE FORMULA:
Claim 5
Dependent Claim
8 words
A PROCESS FOR PREPARING N-FLUOROALKYL-NVINYLALKANAMIDES HAVING THE FORMULA:
References Cited (Backward Citations)
US2231905A
Cited
US2458421A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-02-11 | 1955-08-13 | 1956-02-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-02-11 | 1959-08-13 | 1960-02-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-02-11 | 1963-08-13 | 1964-02-12 | $7700.00 | Window Closed / Lapsed |