Patent US3218277A successfully refreshed from Google Patents.
US3218277A
Expired / Lapsed
US
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Polyolefin stabilized with an alkyl naphthoate and a heat stabilizer
Assignee: Monsanto Co
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Filing: 1962-06-18
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Granted: 1965-11-16
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Expires: 1982-06-18
Abstract
No abstract record available.
Inventors
- 👤 Eugene L Ringwald
- 👤 Cilton W Tate
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 19:18
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/10; C08K5/101
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
88 words
A NEW FIBER-FORMING COMPOSITION OF MATTER COMPRISING A POLYOLEFIN DERIVED FROM A MONO-OLEFIN CONTAINING FROM 2 TO 10 CARBON ATOMS IN THE MONOMERIC CHAIN, FROM ABOUT 0.5 JPERCENT TO ABOUT 2.0 PERCENT, BASED ON THE TOTAL WEIGH OF THE COMPOSITION, OF A HEAT STABILIZER COMPRISING AT LEAST ONE COMPOUND SELECTED FROM THE GROUP CONSISTING OF DILAURYL THIO-DIPROPIONATE, 4,4''-BUTYLIDNEN BIS(6-TERTBUTYL-M-CRESOL), ZINC STEARATE, AND TRIS (NONYLPHENYL) PHOSPHITE, AND FROM ABOUT 0.05 PERCENT TO ABOUT 5.0 PERCENT, BASED ON THE TOTAL WEIGHT OF THE COMPOSITION, OF A NAPHTHOATE HAVING THE FORMULA
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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) | 1968-11-15 | 1969-05-17 | 1969-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-15 | 1973-05-17 | 1973-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-15 | 1977-05-17 | 1977-11-16 | $7700.00 | Window Closed / Lapsed |