Patent US2994636A successfully refreshed from Google Patents.
US2994636A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Insecticidal materials produced by the destructive distillation of gilsonite
Assignee: Individual
•
Filing: 1959-09-21
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Granted: 1961-08-01
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Expires: 1979-09-21
Abstract
No abstract record available.
Inventors
- 👤 Nathan W Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 17:41
CPC Classifications
C; C09; C09D; C09D5/00; C09D5/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
79 words
AN INSECTIDAL COMPOSITION COMPRISING: A VEHICLE, A BAIT, AN ATTRACTANT AND A POISON OBTAINED BY ADDING TO 1 GALLON OF THE DISTILLATE BOILING BETWEEN 355 AND 360*F., OBTAINED BY THE DESTRUCTIVE DISTILLATION OF GILSONITE, ADDING 20 OUNCES OF XYLENE, 7 OUNCES OF TRIETHYLOLAMINE AND 1 POUND OF SILICON DIOXIDE, HEATING UNDER PRESSURE TO 300* F. AND COOLING, ADDING 1 GALLON DISTILLED WATER AND 1 PINT OF TURPENTINE AND THEN DISTILLING THE SAME AND REMOVING THAT FRACTION BOILING ABOVE 256*F.
Claim 2
Dependent Claim
79 words
AN INSECTIDAL COMPOSITION COMPRISING: A VEHICLE, A BAIT, AN ATTRACTANT AND A POISON OBTAINED BY ADDING TO 1 GALLON OF THE DISTILLATE BOILING BETWEEN 355 AND 360*F., OBTAINED BY THE DESTRUCTIVE DISTILLATION OF GILSONITE, ADDING 20 OUNCES OF XYLENE, 7 OUNCES OF TRIETHYLOLAMINE AND 1 POUND OF SILICON DIOXIDE, HEATING UNDER PRESSURE TO 300* F. AND COOLING, ADDING 1 GALLON DISTILLED WATER AND 1 PINT OF TURPENTINE AND THEN DISTILLING THE SAME AND REMOVING THAT FRACTION BOILING ABOVE 256*F.
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) | 1964-07-31 | 1965-01-30 | 1965-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-31 | 1969-01-30 | 1969-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-31 | 1973-01-30 | 1973-08-01 | $7700.00 | Window Closed / Lapsed |