Patent US3090770A successfully refreshed from Google Patents.
US3090770A
Expired / Lapsed
US
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Blended polyethylene compositions of improved clarity and method of making same
Assignee: WR Grace and Co
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Filing: 1960-04-26
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Granted: 1963-05-21
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Expires: 1980-04-26
Abstract
No abstract record available.
Inventors
- 👤 Razmic S Gregorian
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:35
CPC Classifications
C; C08; C08L; C08L23/00; C08L23/02; C08L23/04; C08L23/06; C08L2205/00; C08L2205/02; C08L2205/025; C08L2312/00; C08L2312/06; C08L2314/00; C08L2314/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
42 words
A BLENDED COMPOSITION CONSISTING ESSENTIALLY OF POLYETHYLENE HAVING A DENSITY IN THE RANGE 0.91 TO 0.97 AND A MINOR AMOUNT, BETWEEN ABOUT 0.01 TO 10% BY WEIGHT OF SAID POLYETHYLENE, OF CROSSLINKED POLYETHYLENE HAVING A DENSITY IN THE RANGE 0.91 TO 0.97.
Claim 2
Dependent Claim
42 words
A BLENDED COMPOSITION CONSISTING ESSENTIALLY OF POLYETHYLENE HAVING A DENSITY IN THE RANGE 0.91 TO 0.97 AND A MINOR AMOUNT, BETWEEN ABOUT 0.01 TO 10% BY WEIGHT OF SAID POLYETHYLENE, OF CROSSLINKED POLYETHYLENE HAVING A DENSITY IN THE RANGE 0.91 TO 0.97.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-05-20 | 1966-11-19 | 1967-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-20 | 1970-11-19 | 1971-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-20 | 1974-11-19 | 1975-05-21 | $7700.00 | Window Closed / Lapsed |