US2771459A
Expired / Lapsed
US
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Cationic derivatives of itaconate-diene copolymers
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1952-11-24
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Granted: 1956-11-20
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Expires: 1972-11-24
Abstract
No abstract record available.
Inventors
- 👤 Fred W Banes
- 👤 Arundale Erving
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 12:40
CPC Classifications
C; C08; C08F; C08F222/00; C08F222/10; C08F222/12; C08F222/14; Y; Y10; Y10S; Y10S260/00; Y10S260/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
47 words
A PRODUCT COMPRISING A SALT OF A COPOLYMER OF 65 TO 90 PARTS DIMETHYL ITACONATE AND 35 TO 10 PARTS OF A DIOLEFIN OF 4 TO 6 CARBON ATOMS, THE CATION OF SAID SALT BEING SELECTED FROM THE GROUP CONSISTING OF METALS, AMMONIUM AND BASIC AMINE RADICALS.
Claim 2
Dependent Claim
47 words
A PRODUCT COMPRISING A SALT OF A COPOLYMER OF 65 TO 90 PARTS DIMETHYL ITACONATE AND 35 TO 10 PARTS OF A DIOLEFIN OF 4 TO 6 CARBON ATOMS, THE CATION OF SAID SALT BEING SELECTED FROM THE GROUP CONSISTING OF METALS, AMMONIUM AND BASIC AMINE RADICALS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-11-20 | 1960-05-21 | 1960-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-20 | 1964-05-21 | 1964-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-20 | 1968-05-21 | 1968-11-20 | $7700.00 | Window Closed / Lapsed |