US3177174A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Non-static polyolefin-polyethylene glycol stearate ester composition
Assignee: WR Grace and Co
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Filing: 1961-12-07
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Granted: 1965-04-06
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Expires: 1981-12-07
Abstract
No abstract record available.
Inventors
- 👤 George A Tirpak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 00:01
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/10; C08K5/101; C08L; C08L23/00; C08L23/02; C08L23/04; C08L71/00; C08L71/02; Y; Y10; Y10S; Y10S260/00; Y10S260/15
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
60 words
A SUBSTANTIALLY NON-STATIC COMPOSITION COMPRISING (A) A POLYMER HAVING A DENSITY OF AT LEAST ABOUT 0.940 AND SELECTED FROM THE GROUP CONSISTING OF POLYETHYLENE HOMOPOLYMER AND POLYETHYLENE COPOLYMERS CONTAINING UP TO ABOUT 5% OF ANOTHER A-OLEFIN COMONOMER AND (B) A MIXTURE OF POLYETHYLENE GLYCOL STEARATE ESTERS CONTAINING ABOUT 5% BY WEIGHT OF FREE GLYCOL AND AN ESTER OF THE FORMULA
Claim 2
Dependent Claim
60 words
A SUBSTANTIALLY NON-STATIC COMPOSITION COMPRISING (A) A POLYMER HAVING A DENSITY OF AT LEAST ABOUT 0.940 AND SELECTED FROM THE GROUP CONSISTING OF POLYETHYLENE HOMOPOLYMER AND POLYETHYLENE COPOLYMERS CONTAINING UP TO ABOUT 5% OF ANOTHER A-OLEFIN COMONOMER AND (B) A MIXTURE OF POLYETHYLENE GLYCOL STEARATE ESTERS CONTAINING ABOUT 5% BY WEIGHT OF FREE GLYCOL AND AN ESTER OF THE FORMULA
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) | 1968-04-05 | 1968-10-05 | 1969-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-05 | 1972-10-05 | 1973-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-05 | 1976-10-05 | 1977-04-06 | $7700.00 | Window Closed / Lapsed |