Patent US3008939A successfully refreshed from Google Patents.
US3008939A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phosphorylated olefin polymers
Assignee: Union Carbide Corp
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Filing: 1957-12-27
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Granted: 1961-11-14
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Expires: 1977-12-27
Abstract
No abstract record available.
Inventors
- 👤 Juel P Schroeder
- 👤 Jr Edward C Leonard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:51
CPC Classifications
C; C08; C08F; C08F8/00; C08F8/40; Y; Y10; Y10S; Y10S8/00; Y10S8/09
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
25 words
A PROCESS FOR THE INTRODUCTION OF PHOSPHORUS CONTAINING GROUPS INTO LOWER HYDROCARBON MONOOLEFIN POLYMERS WHICH COMPRISES REACTING SAID OLEFIN POLYMERS WITH PHOSPHORUS TRICHLORIDE AND OXYGEN.
Claim 2
Dependent Claim
25 words
A PROCESS FOR THE INTRODUCTION OF PHOSPHORUS CONTAINING GROUPS INTO LOWER HYDROCARBON MONOOLEFIN POLYMERS WHICH COMPRISES REACTING SAID OLEFIN POLYMERS WITH PHOSPHORUS TRICHLORIDE AND OXYGEN.
Claim 3
Dependent Claim
35 words
A PHOSPHORYLATED POLYPROPYLENE FREE OF CHLORINE ATOMS ATTACHED TO CARBON ATOMS OF THE HYDROCARBON CHAIN AND HAVING AT LEAST 0.2 PART BY WEIGHT OF PHOSPHORUS PRESENT AS PHOSPONYL DICHLORIDE GROUPS PER HUNDRED PARTS OF POLYPROPYLENE.
Claim 4
Dependent Claim
35 words
A PHOSPHORYLATED POLYPROPYLENE FREE OF CHLORINE ATOMS ATTACHED TO CARBON ATOMS OF THE HYDROCARBON CHAIN AND HAVING AT LEAST 0.2 PART BY WEIGHT OF PHOSPHORUS PRESENT AS PHOSPONYL DICHLORIDE GROUPS PER HUNDRED PARTS OF POLYPROPYLENE.
References Cited (Backward Citations)
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-11-13 | 1965-05-15 | 1965-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-11-13 | 1969-05-15 | 1969-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-11-13 | 1973-05-15 | 1973-11-14 | $7700.00 | Window Closed / Lapsed |