Patent US3299181A successfully refreshed from Google Patents.
US3299181A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermally modified polyethylene and other polymers and process for preparing the same
Assignee: Eastman Kodak Co
•
Filing: 1960-05-03
•
Granted: 1967-01-17
•
Expires: 1980-05-03
Abstract
No abstract record available.
Inventors
- 👤 Jr Harry W Coover
- 👤 Marvin A Mccall
- 👤 James E Guillet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:03
CPC Classifications
C; C08; C08G; C08G81/00; C08G81/02; C08G81/021; B; B29; B29C; B29C48/00; B29C48/25; B29C48/92; C08F; C08F8/00; C08F8/50; C08J; C08J5/00; C08J5/18; C08L; C08L23/00; C08L23/02; C08L23/04; C08L23/06; C08L23/10; B29C2948/00; B29C2948/92; B29C2948/92504; B29C2948/92514; B29C2948/92704; B29C48/022; B29C48/78; B29C48/80; B29C48/802; C08F2810/00; C08F2810/10; C08L23/08; C08L23/0807; C08L23/0815; C08L23/18; C08L23/20; C08L23/22; C08L25/00; C08L25/02; C08L25/04; C08L25/06; C08L29/00; C08L29/10; C08L31/00; C08L31/02; C08L31/04; C08L33/00; C08L33/04; C08L33/06; C08L33/10; C08L33/12; C08L9/00; Y; Y10; Y10S; Y10S206/00; Y10S206/819; Y10S260/00; Y10S260/43; Y10S525/00; Y10S525/938
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
THE METHOD OF TAILORING POLYETHYLENE TO INCREASE ITS VALUE AND VERSATILITY WHICH COMPRISES DEGRADING BY HEATING, AT A TEMPERATURE IN THE RANGE OF 290* TO ABOUT 450*C., FOR AT LEAST ONE MINUTE, A MIXTURE COMPRISING ABOUT 5 TO ABOUT 95 PERCENT, BY WEIGHT, OF SOLID NONCROSS-LINKED POLYETHYLENE RESIN AND ABOUT 5 TO ABOUT 95 PERCENT, BY WEIGHT, OF A MODIFIER SELECTED FROM THE GROUP CONSISTING OF (1) A POLYMER OF A COMPOUND HAVING THE FORMULA:
Claim 2
Independent Claim
75 words
THE METHOD OF TAILORING POLYETHYLENE TO INCREASE ITS VALUE AND VERSATILITY WHICH COMPRISES DEGRADING BY HEATING, AT A TEMPERATURE IN THE RANGE OF 290* TO ABOUT 450*C., FOR AT LEAST ONE MINUTE, A MIXTURE COMPRISING ABOUT 5 TO ABOUT 95 PERCENT, BY WEIGHT, OF SOLID NONCROSS-LINKED POLYETHYLENE RESIN AND ABOUT 5 TO ABOUT 95 PERCENT, BY WEIGHT, OF A MODIFIER SELECTED FROM THE GROUP CONSISTING OF (1) A POLYMER OF A COMPOUND HAVING THE FORMULA:
References Cited (Backward Citations)
US2400091A
Cited
US2912410A
Cited
US2924584A
Cited
US2944040A
Cited
US2956042A
Cited
US2953541A
Cited
US3121070A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-16 | 1970-07-18 | 1971-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-16 | 1974-07-18 | 1975-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-16 | 1978-07-18 | 1979-01-17 | $7700.00 | Window Closed / Lapsed |