US3565853A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Organic nitrite stabilized olefin polymers
Assignee: Phillips Petroleum Co
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Filing: 1968-10-21
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Granted: 1971-02-23
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Expires: 1988-10-21
Abstract
Abstract OLEFIN POLYMERS ARE STABILIZED TO MINIMIZE MELT FLOW DROPOFF AT ELEVATED TEMPERATURES BY ADMIXING POLYMER WITH A STABILIZING AMOUNT UP TO 2.0 WEIGHT PERCENT OF AN ORGANIC NITRITE, R-O-N=O, WHERE R IS AN ALIPHATIC RADICAL WITH 8-20 CARBON ATOMS.
Inventors
- 👤 Clive D Moon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 05:21
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/32
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) | 1974-02-22 | 1974-08-24 | 1975-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-22 | 1978-08-24 | 1979-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-22 | 1982-08-24 | 1983-02-23 | $7700.00 | Window Closed / Lapsed |