Patent US3274158A successfully refreshed from Google Patents.
US3274158A
Expired / Lapsed
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Olefin copolymer modified with a hydroxybenzoic acid
Assignee: EIDP Inc
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Filing: 1965-05-24
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Granted: 1966-09-20
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Expires: 1985-05-24
Abstract
No abstract record available.
Inventors
- 👤 Tocker Stanley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:27
CPC Classifications
C; C08; C08F; C08F36/00; C08F8/00; C08F8/34; D; D01; D01F; D01F6/00; D01F6/28; D01F6/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
56 words
A MODIFIED COPOLYMER OF 65-99 MOLE PERCENT OF ETHYLENE AND 1-35 MOLE PERCENT OF PROPADIENE, SAID MODIFICATION BEING BY REACTION WITH A HYDROXYL-CONTAINING AROMATIC ACID SELECTED FROM THE GROUP CONSISTING OF SALICYCLIC ACID, METAHYDROXYBENZOIC ACID AND PARA-HYDROXYBENZOIC ACID TO PROVIDE 1-35 MOLE PERCENT OF A RANDOM SELECTION OF RECURRING UNITS SELECTED FROM THE GROUP CONSISTING OF
Claim 2
Dependent Claim
56 words
A MODIFIED COPOLYMER OF 65-99 MOLE PERCENT OF ETHYLENE AND 1-35 MOLE PERCENT OF PROPADIENE, SAID MODIFICATION BEING BY REACTION WITH A HYDROXYL-CONTAINING AROMATIC ACID SELECTED FROM THE GROUP CONSISTING OF SALICYCLIC ACID, METAHYDROXYBENZOIC ACID AND PARA-HYDROXYBENZOIC ACID TO PROVIDE 1-35 MOLE PERCENT OF A RANDOM SELECTION OF RECURRING UNITS SELECTED FROM THE GROUP CONSISTING OF
References Cited (Backward Citations)
GB776326A
Cited
US3043818A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-19 | 1970-03-21 | 1970-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-19 | 1974-03-21 | 1974-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-19 | 1978-03-21 | 1978-09-20 | $7700.00 | Window Closed / Lapsed |