US3293208A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilization of polyolefins with certain metal dithiophosphinate salts
Assignee: Wyeth Holdings LLC
•
Filing: 1964-04-06
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Granted: 1966-12-20
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Expires: 1984-04-06
Abstract
No abstract record available.
Inventors
- 👤 Milionis Jerry Peter
- 👤 Jr Frank Joseph Arthen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 23:16
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/30; C07F9/303; C08; C08K; C08K5/00; C08K5/49; C08K5/5398
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
41 words
A COMPOSITION HAVING STABILITY AGAINST THE DETERIORATING EFFECTS OF HEAT AND LIGHT, WHICH COMPRISES A POLYMER OF A MEMBER SELECTED FROM THE GROUP CONSISTING OF ETHYLENE AND PROPYLENE FROM 0.01 PERCENT TO 5.0 PERCENT OF A SALT REPRESENTED BY THE FORMULA:
Claim 2
Dependent Claim
41 words
A COMPOSITION HAVING STABILITY AGAINST THE DETERIORATING EFFECTS OF HEAT AND LIGHT, WHICH COMPRISES A POLYMER OF A MEMBER SELECTED FROM THE GROUP CONSISTING OF ETHYLENE AND PROPYLENE FROM 0.01 PERCENT TO 5.0 PERCENT OF A SALT REPRESENTED BY THE FORMULA:
References Cited (Backward Citations)
US2797238A
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US3041311A
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US3098057A
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FR1320995A
Cited
GB937882A
Cited
US3138605A
Cited
US3177233A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-12-19 | 1970-06-20 | 1970-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-19 | 1974-06-20 | 1974-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-19 | 1978-06-20 | 1978-12-20 | $7700.00 | Window Closed / Lapsed |