US3413272A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and product of acyl halide copolymers reacted with an imine compound
Assignee: EIDP Inc
•
Filing: 1965-11-18
•
Granted: 1968-11-26
•
Expires: 1985-11-18
Abstract
No abstract record available.
Inventors
- 👤 Rees Richard Watkin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:18
CPC Classifications
C; C08; C08F; C08F8/00; C08F8/30; C08F2800/00; C08F2800/20; Y; Y10; Y10S; Y10S260/00; Y10S260/31; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
9 words
A COPOLYMER CONTAINING POLYMERIZED ALPHA-OLEFIN UNITS HAVING THE FORMULA
Claim 2
Dependent Claim
9 words
A COPOLYMER CONTAINING POLYMERIZED ALPHA-OLEFIN UNITS HAVING THE FORMULA
References Cited (Backward Citations)
US3261797A
Cited
US3301700A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-11-26 | 1972-05-27 | 1972-11-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-11-26 | 1976-05-27 | 1976-11-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-11-26 | 1980-05-27 | 1980-11-26 | $7700.00 | Window Closed / Lapsed |