US2680735A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resinous esters of acrylic acid and methacrylic acid
Assignee: Rohm and Haas Co
•
Filing: 1952-07-09
•
Granted: 1954-06-08
•
Expires: 1972-07-09
Abstract
No abstract record available.
Inventors
- 👤 Virginia W Fegley
- 👤 Stanley P Rowland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:17
CPC Classifications
C; C07; C07D; C07D317/00; C07D317/08; C07D317/10; C07D317/14; C07D317/18; C07D317/24; C08; C08F; C08F20/00; C08F20/02; C08F20/10; C08F20/26; C08F20/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
8 words
A POLYMERIZABLE ESTER REPRESENTED BY THE GENERAL FORMULA
Claim 2
Dependent Claim
8 words
A POLYMERIZABLE ESTER REPRESENTED BY THE GENERAL FORMULA
References Cited (Backward Citations)
US2312298A
Cited
US2382640A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-06-07 | 1957-12-07 | 1958-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-06-07 | 1961-12-07 | 1962-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-06-07 | 1965-12-07 | 1966-06-08 | $7700.00 | Window Closed / Lapsed |