US2628958A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymerizable esters of alphamethylene carboxylic acids
Assignee: EIDP Inc
•
Filing: 1950-05-03
•
Granted: 1953-02-17
•
Expires: 1970-05-03
Abstract
No abstract record available.
Inventors
- 👤 Jr James Arthur Bittles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:59
CPC Classifications
C; C08; C08F; C08F20/00; C08F20/02; C08F20/10; C08F20/22; C08F8/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
70 words
AN ESTER OF AN ALPHA-METHYLENE CARBOXYLIC ACID WHEREIN THE ALKENYL RADICAL ATTACHED TO THE CARBOXYL GROUP CONTAINS TWO TO THREE CARBON ATOMS, INCLUSIVE, AND A STRAIGHT CHAIN FLUOROALKANOL HAVING AN ODD NUMBER OF CARBON ATOMS OF FROM FIVE TO THIRTEEN, INCLUSIVE, AND EXCLUSIVE OF THE TERMINAL CARBON ATOMS IN THE PRIMARY ALCOHOL GROUP, -CH2OH, TWO FLUORINE ATOMS ON EVERY CARBON ATOMS AND ONE HYDROGEN ON THE OTHER TERMINAL CARBON ATOM.
Claim 2
Dependent Claim
70 words
AN ESTER OF AN ALPHA-METHYLENE CARBOXYLIC ACID WHEREIN THE ALKENYL RADICAL ATTACHED TO THE CARBOXYL GROUP CONTAINS TWO TO THREE CARBON ATOMS, INCLUSIVE, AND A STRAIGHT CHAIN FLUOROALKANOL HAVING AN ODD NUMBER OF CARBON ATOMS OF FROM FIVE TO THIRTEEN, INCLUSIVE, AND EXCLUSIVE OF THE TERMINAL CARBON ATOMS IN THE PRIMARY ALCOHOL GROUP, -CH2OH, TWO FLUORINE ATOMS ON EVERY CARBON ATOMS AND ONE HYDROGEN ON THE OTHER TERMINAL CARBON ATOM.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-02-17 | 1956-08-18 | 1957-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-02-17 | 1960-08-18 | 1961-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-02-17 | 1964-08-18 | 1965-02-17 | $7700.00 | Window Closed / Lapsed |