US3303148A
Expired / Lapsed
US
⏱️ 0.0 years remaining
High-density polypropylene blend with a cellulose ether or ester
Assignee: WC DILLON & COMPANY Inc A CORP OF DE
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Filing: 1965-07-15
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Granted: 1967-02-07
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Expires: 1985-07-15
Abstract
No abstract record available.
Inventors
- 👤 Frederick B Joyner
- 👤 Jr Harry W Coover
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:33
CPC Classifications
C; C08; C08L; C08L23/00; C08L23/02; C08L23/10; C08L23/12; C08L1/00; C08L1/08; C08L1/10; C08L1/12; C08L23/18; C08L25/00; C08L25/02; C08L25/04; C08L25/06; C08L25/08; C08L27/00; C08L27/02; C08L27/04; C08L27/06; C08L31/00; C08L31/02; C08L31/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
46 words
A POLYPROPYLENE CMPOSITION COMPRISING HIGHDENSITY POLYPROPYLENE AND ABOUT 2 TO ABOUT 50 PERCENT, BY WEIGHT, OF A POLYMERIC MODIFIER SELECTED FROM THE GROUP CONSISTING OF CELLULOSE ESTER OF CARBOXYLIC ACID AND CELLULOSE ETHER, SAID POLYMERIC MODIFIER BEING CAPABLE OF INCREASING THE IMPACT STRENGHT OF THE POLYPROPYLENE.
Claim 2
Dependent Claim
46 words
A POLYPROPYLENE CMPOSITION COMPRISING HIGHDENSITY POLYPROPYLENE AND ABOUT 2 TO ABOUT 50 PERCENT, BY WEIGHT, OF A POLYMERIC MODIFIER SELECTED FROM THE GROUP CONSISTING OF CELLULOSE ESTER OF CARBOXYLIC ACID AND CELLULOSE ETHER, SAID POLYMERIC MODIFIER BEING CAPABLE OF INCREASING THE IMPACT STRENGHT OF THE POLYPROPYLENE.
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) | 1970-02-06 | 1970-08-08 | 1971-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-06 | 1974-08-08 | 1975-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-06 | 1978-08-08 | 1979-02-07 | $7700.00 | Window Closed / Lapsed |