US2545184A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diallyl esters and polymers thereof
Assignee: Shell Development Co
•
Filing: 1945-06-11
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Granted: 1951-03-13
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Expires: 1965-06-11
Abstract
No abstract record available.
Inventors
- 👤 Lynwood N Whitehill
- 👤 Edward C Shokal
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 02:21
CPC Classifications
C; C08; C08F; C08F18/00; C08F18/02; C08F18/04; C08F18/08; Y; Y10; Y10S; Y10S524/00; Y10S524/925
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
AN ESTER OF AN ACYLOXYLATED ALIPHATIC DICARBOXYLIC ACID HAVING THE HYDROGEN ATOM OF EACH OF THE TWO CARBOXYLIC ACID GROUPS REPLACED BY THE HYDROCARBON RADICAL OF A BETA-GAMMA-MONOOLEFINIC MONOHYDRIC ALCOHOL OFUP TO 6 CARBON ATOMS, AND SAID ESTER HAVING THE TWO CARBOXYL GROUPS OF SAID DICARBOXYLIC ACID SEPARATED BY A STRAIGHT CHAIN OF UP TO SIX ALIPHATIC CARBON ATOMS TO EACH OF WHICH IS DIRECTLY LINKED ONE ACYLOXY RADICAL OF A SATURATED FATTY ACID OF UP TO 4 CARBON ATOMS.
Claim 2
Dependent Claim
80 words
AN ESTER OF AN ACYLOXYLATED ALIPHATIC DICARBOXYLIC ACID HAVING THE HYDROGEN ATOM OF EACH OF THE TWO CARBOXYLIC ACID GROUPS REPLACED BY THE HYDROCARBON RADICAL OF A BETA-GAMMA-MONOOLEFINIC MONOHYDRIC ALCOHOL OFUP TO 6 CARBON ATOMS, AND SAID ESTER HAVING THE TWO CARBOXYL GROUPS OF SAID DICARBOXYLIC ACID SEPARATED BY A STRAIGHT CHAIN OF UP TO SIX ALIPHATIC CARBON ATOMS TO EACH OF WHICH IS DIRECTLY LINKED ONE ACYLOXY RADICAL OF A SATURATED FATTY ACID OF UP TO 4 CARBON ATOMS.
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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) | 1954-03-12 | 1954-09-11 | 1955-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-12 | 1958-09-11 | 1959-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-12 | 1962-09-11 | 1963-03-13 | $7700.00 | Window Closed / Lapsed |