US3634552A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymer blend compositions comprising polypropylene and ethylene/butene copolymer
Assignee: Mobil Oil AS
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Filing: 1969-09-22
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Granted: 1972-01-11
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Expires: 1989-09-22
Abstract
Abstract RESINOUS BLEND COMPOSITIONS, PARTICULARLY SUITABLE FOR THE PREPARATION OF ORIENTED SHRINK FILM PRODUCTS, COMPRISING A BLEND OF FROM ABOUT 10% TO ABOUT 90% BY WEIGHT OF A HIGH ISOTACTIC CONTENT POLYPROPYLENE BLENDED WITH FROM ABOUT 10 TO ABOUT 90% BY WEIGHT OF AN ETHYLENE-BUTENE-1 COPOLYMER RESIN CONTAINING A MINOR AMOUNT OF ETHYLENE.
Inventors
- 👤 Andrew J Foglia
- 👤 Harold G Tinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 06:54
CPC Classifications
C; C08; C08L; C08L23/00; C08L23/02; C08L23/10; B; B29; B29C; B29C61/00; B29C61/003; C08L23/14; C08L23/142; C08L23/18; C08L23/20; B29C61/06; B29C61/08; B29K; B29K2023/00; Y; Y10; Y10T; Y10T428/00; Y10T428/13; Y10T428/1328; Y10T428/1331
Claims Analysis
Total Claims: 0
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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) | 1975-01-10 | 1975-07-12 | 1976-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-01-10 | 1979-07-12 | 1980-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-01-10 | 1983-07-12 | 1984-01-11 | $7700.00 | Window Closed / Lapsed |