US2555595A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Esters of unsaturated acidbranched chain hexadiene polymer adducts
Assignee: Shell Development Co
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Filing: 1948-04-30
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Granted: 1951-06-05
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Expires: 1968-04-30
Abstract
No abstract record available.
Inventors
- 👤 Rupert C Morris
- 👤 John L Van Winkle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 02:57
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/02; C08G63/12; C08G63/52; C08G63/54
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
AN ESTER OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF THE LOWER OXY-SUBSTITUTED ALKYL ALCOHOLS AND THE LOWER OXY-SUBSTITUTED ALKENYL ALCOHOLS WITH AN ADDITION PRODUCT MADE UP OF A COMPOUND SELECTED FROM THE GROUP CONSISTTING OF ALPHA-BETA-UNSATURATED-ALPHA BETADICARBOXYLIC ALIPHATIC ACIDS AND THE ANHYDRIDES. SALTS AND ESTERS OF SAID ACIDS IN COMBINATION WITH A LOW MOLECULAR WEIGHT UNSATURATED, CYCLIC POLYMER OF A BRANCH-CHAIN 1, 3-HEXADIENE HAVING A STRAIGHT CHAIN OF 5 CARBON ATOMS IN THE MOLECULE.
Claim 2
Dependent Claim
76 words
AN ESTER OF A COMPOUND SELECTED FROM THE GROUP CONSISTING OF THE LOWER OXY-SUBSTITUTED ALKYL ALCOHOLS AND THE LOWER OXY-SUBSTITUTED ALKENYL ALCOHOLS WITH AN ADDITION PRODUCT MADE UP OF A COMPOUND SELECTED FROM THE GROUP CONSISTTING OF ALPHA-BETA-UNSATURATED-ALPHA BETADICARBOXYLIC ALIPHATIC ACIDS AND THE ANHYDRIDES. SALTS AND ESTERS OF SAID ACIDS IN COMBINATION WITH A LOW MOLECULAR WEIGHT UNSATURATED, CYCLIC POLYMER OF A BRANCH-CHAIN 1, 3-HEXADIENE HAVING A STRAIGHT CHAIN OF 5 CARBON ATOMS IN THE MOLECULE.
References Cited (Backward Citations)
US2468769A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-06-04 | 1954-12-04 | 1955-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-06-04 | 1958-12-04 | 1959-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-06-04 | 1962-12-04 | 1963-06-05 | $7700.00 | Window Closed / Lapsed |