US2967173A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymerizable esters of acrylic and methacrylic acid and polymers thereof
Assignee: EIDP Inc
•
Filing: 1956-03-22
•
Granted: 1961-01-03
•
Expires: 1976-03-22
Abstract
No abstract record available.
Inventors
- 👤 James C Fang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 12:53
CPC Classifications
C; C08; C08F; C08F20/00; C08F20/02; C08F20/10; C08F20/26; C08F20/28; C07; C07D; C07D317/00; C07D317/08; C07D317/10; C07D317/32; C07D317/34; C07D317/36
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
7 words
A POLYMERIZABLE ESTER HAVING THE GENERAL FORMULA
Claim 2
Dependent Claim
7 words
A POLYMERIZABLE ESTER HAVING THE GENERAL FORMULA
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) | 1964-01-03 | 1964-07-04 | 1965-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-03 | 1968-07-04 | 1969-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-03 | 1972-07-04 | 1973-01-03 | $7700.00 | Window Closed / Lapsed |