Patent US2053875A successfully refreshed from Google Patents.
Patent US2717262A successfully refreshed from Google Patents.
US2717262A
Expired / Lapsed
US
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Process of producing chrysanthemic acid esters of cyclopentenyl ketonic alcohols and products
Assignee: Chemical Elaborations Inc
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Filing: 1949-08-15
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Granted: 1955-09-06
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Expires: 1969-08-15
Abstract
No abstract record available.
Inventors
- 👤 Robert M Cole
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:48
CPC Classifications
C; C07; C07C; C07C49/00; C07C49/04; C07C49/16; C07C45/00; C07C45/61; C07C45/63
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
45 words
THE METHOD OF PRODUCING AN INSECTICIDE WHICH COMPRISES THE STEPS OF CHLORINATING ACETONYL ACETONE AND REACTING, UNDER ANHYDROUS CONDITIONS, THE CHLOR ACETONYL ACETONE SO OBTAINED WITH A COMPOUND SELECTED FROM THE CLASS CONSISTING OF MONO CARBOXYLIC CHRYSANTHEMIC ACID AND ITS SALTS TO PRODUCE AN ESTER.
Claim 2
Dependent Claim
47 words
A METHOD IN ACCORDANCE WITH CLAIM 8 AND INCLUDING THE FURTHER STEP OF REACTING UNDER ANHYDROUS CONDITIONS,THE ESTER PRODUCED BY THE METHOD OF CLAIM 8 WITH A COMPOUND SELECTED FROM THE CLASS CONSISTING OF ALKENE AND ALKADIENE HALIDES AND ALDEHYDES IN THE PRESENCE OF AN ALKALINE CATALYST.
References Cited (Backward Citations)
US2387587A
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US2382313A
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US2359459A
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US2441183A
Cited
US2499172A
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US2466926A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-09-05 | 1959-03-07 | 1959-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-09-05 | 1963-03-07 | 1963-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-09-05 | 1967-03-07 | 1967-09-06 | $7700.00 | Window Closed / Lapsed |