Patent US2824824A successfully refreshed from Google Patents.
US2824824A
Expired / Lapsed
US
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Insect repellent and method of stabilizing same
Assignee: Phillips Petroleum Co
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Filing: 1955-05-11
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Granted: 1958-02-25
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Expires: 1975-05-11
Abstract
No abstract record available.
Inventors
- 👤 Lyle D Goodhne
- 👤 Kenneth E Cantrel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:56
CPC Classifications
C; C07; C07D; C07D213/00; C07D213/02; C07D213/04; C07D213/60; C07D213/78; C07D213/79; C07D213/80; C07D311/00; C07D311/02; C07D311/04; C07D311/06; C07D311/08
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
49 words
A METHOD OF STABILIZING AN INSECT REPELLENT COMPOSITION COMPRISING AS AN ESSENTIAL INGREDIENT A CXOMPOUND SELECTED FROM THE GROUP CONSISTING OF THE DIETHYL-, DI-NPROPYL-, AND DI-N-BUTYL ESTERS OF PYRIDINE-2,5-DICARBOXYLIC ACID AND MIXTURES THEREOF WHICH COMPRISES ADDING THERETO A COMPOUND SELECTED FROM THE GROUP CONSISTING OF COMPOUNDS HAVING THE FORMULA
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-02-24 | 1961-08-26 | 1962-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-24 | 1965-08-26 | 1966-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-24 | 1969-08-26 | 1970-02-25 | $7700.00 | Window Closed / Lapsed |