Patent US3342791A successfully refreshed from Google Patents.
US3342791A
Expired / Lapsed
US
⏱️ 0.0 years remaining
N-acyl-acryloxyalkanamides, polymers thereof and methods of making them and their polymers
Assignee: Rohm and Haas Co
•
Filing: 1964-12-11
•
Granted: 1967-09-19
•
Expires: 1984-12-11
Abstract
No abstract record available.
Inventors
- 👤 Everett J Kelley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:45
CPC Classifications
C; C08; C08F; C08F20/00; C08F20/02; C08F20/10; C08F20/34
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
9 words
AN ADDITION POLYMER OF A COMPOUND OF THE FORMULA
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-09-18 | 1971-03-20 | 1971-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-18 | 1975-03-20 | 1975-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-18 | 1979-03-20 | 1979-09-19 | $7700.00 | Window Closed / Lapsed |