US2578736A
Expired / Lapsed
US
⏱️ 0.0 years remaining
New insecticides
Assignee: Individual
•
Filing: 1946-05-29
•
Granted: 1951-12-18
•
Expires: 1966-05-29
Abstract
No abstract record available.
Inventors
- 👤 Pijoan Michel
- 👤 Robert D Englert
- 👤 Henry J Gerjovich
- 👤 Mortimer L Hopwood
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:00
CPC Classifications
A; A01; A01N; A01N27/00; A01N25/00; A01N25/02; A01N49/00; A01N2300/00
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
52 words
AN IMPROVED INSECTICIDAL COMPOSITION CONTAINING AS AN ESSENTIAL ACTIVE INGREDIENT, A COMPOUND, DISSOLVED IN AN INSECT PENETRANT SOLVENT, CONSISTING OF TWO PARTIALLY HYDROGENATED NAPHTHALENE RINGS CONDENSED WITH A CHLORAL GROUP IN WHICH RINGS IS SUBSTITUTED A FUNCTIONING SUBSTITUENT CHOSEN FROM THE GROUP CONSISTING OF HYDROXY, ALKOXY, HALOGEN AND CARBPXYLIC ACID ESTER GROUPS.
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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) | 1954-12-17 | 1955-06-18 | 1955-12-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-12-17 | 1959-06-18 | 1959-12-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-12-17 | 1963-06-18 | 1963-12-18 | $7700.00 | Window Closed / Lapsed |