US3668226A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Straight chain aliphatic carboxylic acid monoesters of 1,3-dihydroxy-2-propanone
Assignee: United States Department of the Army
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Filing: 1970-02-26
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Granted: 1972-06-06
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Expires: 1990-02-26
Abstract
Abstract This invention relates to perdurable insect repellent compositions comprising a precursor molecule which includes a moiety with dermal anchoring properties linked to a moiety with insect repellent properties. There are also described six new compounds, illustrative of the perdurable insect repellent structure. The six compounds are monoesters of 1,3-dihydroxy-2propanone and the straight-chain aliphatic carboxylic acidspropanoic acid, pentanoic acid, hexanoic acid, heptanoic acid, octanoic acid, and undecanoic acid.
Inventors
- 👤 Ronald P Quintana
- 👤 Lorrin R Garson
- 👤 Andrew Lasslo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 02:26
CPC Classifications
A; A01; A01N; A01N37/00; A01N37/12; C; C07; C07C; C07C69/00; C07C69/02; C07C69/22; C07C69/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2627489A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-06-06 | 1975-12-06 | 1976-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-06 | 1979-12-06 | 1980-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-06 | 1983-12-06 | 1984-06-06 | $7700.00 | Window Closed / Lapsed |