Patent US2841569A successfully refreshed from Google Patents.
US2841569A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Graft polymers of polyethylene and polymerizable nitriles and process for producing same
Assignee: Union Carbide Corp
•
Filing: 1954-08-30
•
Granted: 1958-07-01
•
Expires: 1974-08-30
Abstract
No abstract record available.
Inventors
- 👤 Frank M Rugg
- 👤 James E Potts
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 05:15
CPC Classifications
C; C08; C08F; C08F255/00; C08F255/02; C08L; C08L23/00; C08L23/02; C08L23/04; C08L23/06; C08L2205/00; C08L2205/03; C08L33/00; C08L33/18; C08L33/20; C08L51/00; C08L51/06; Y; Y10; Y10S; Y10S116/00; Y10S116/14; Y10S525/00; Y10S525/91; Y10S525/912; Y10S8/00; Y10S8/18
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
17 words
A THERMOPLASTIC GRAFT COPOLYMER OF THE INGREDIENTS CONSISTING OF POLYETHYLENE AND A POLYMERIZABLE NITRILE HAVING THE FORMULA
References Cited (Backward Citations)
US2405817A
Cited
US2620324A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-06-30 | 1961-12-30 | 1962-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-30 | 1965-12-30 | 1966-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-30 | 1969-12-30 | 1970-07-01 | $7700.00 | Window Closed / Lapsed |