Patent US2639259A successfully refreshed from Google Patents.
US2639259A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Insecticides
Assignee: Union Carbide Corp
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Filing: 1948-07-20
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Granted: 1953-05-19
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Expires: 1968-07-20
Abstract
No abstract record available.
Inventors
- 👤 Richard H Wellman
- 👤 Raymond W Mcnamee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:12
CPC Classifications
C; C07; C07D; C07D233/00; C07D233/54; C07D233/56; A; A01; A01N; A01N25/00; A01N25/02; A01N25/04; A01N25/30; A01N25/34; A01N2300/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
31 words
COMPOSITION FOR PROTECTION OF A BASE AGAINST INSECTS COMPRISING A MONOBUTOXY POLYPROPYLENE GLYCOL HAVING VISCOSITY BETWEEN 100 AND 850 SAYBOLT UNIVERSAL SECONDS AT 100* F., AN EMULSIFYING AGENT AND AN INSECTICIDE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-05-18 | 1956-11-17 | 1957-05-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-05-18 | 1960-11-17 | 1961-05-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-05-18 | 1964-11-17 | 1965-05-19 | $7700.00 | Window Closed / Lapsed |