US2743548A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of vaporizing a mixture of organic insecticides in ventilated rooms
Assignee: American Aerovap Inc
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Filing: 1951-02-12
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Granted: 1956-05-01
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Expires: 1971-02-12
Abstract
No abstract record available.
Inventors
- 👤 David H Christopher
- 👤 Philip J Spear
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:49
CPC Classifications
A; A01; A01M; A01M13/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
71 words
THE METHOD OF MAINTAINING SUBSTANTIALLY FREE FROM INSECT LIFE A VANTILATED ROOM SUITABLE FOR OCCUPANCY BY HUMAN BEINGS WHICH COMPRISES CONSTANTLY EVAPORATING THEREINTO, BY CONTROLLED APPLICATION OF HEAT, A MASS, THE VAPORIZABLE COMPONENTS OF WHICH CONSIST ESSENTIALLY OF A MIXTURE OF AT LEAST 25 PER CENT OF LINDANE AND ANOTHER ORGANIC INSECTICIDE THAT IS SOLID AT ROOM TEMPERATURE AND THAT HAS A VAPOR PRESSURE MUCH LOWER THAN THAT OF THE LINDANE.
Claim 2
Independent Claim
71 words
THE METHOD OF MAINTAINING SUBSTANTIALLY FREE FROM INSECT LIFE A VANTILATED ROOM SUITABLE FOR OCCUPANCY BY HUMAN BEINGS WHICH COMPRISES CONSTANTLY EVAPORATING THEREINTO, BY CONTROLLED APPLICATION OF HEAT, A MASS, THE VAPORIZABLE COMPONENTS OF WHICH CONSIST ESSENTIALLY OF A MIXTURE OF AT LEAST 25 PER CENT OF LINDANE AND ANOTHER ORGANIC INSECTICIDE THAT IS SOLID AT ROOM TEMPERATURE AND THAT HAS A VAPOR PRESSURE MUCH LOWER THAN THAT OF THE LINDANE.
References Cited (Backward Citations)
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Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-05-01 | 1959-10-31 | 1960-05-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-05-01 | 1963-10-31 | 1964-05-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-05-01 | 1967-10-31 | 1968-05-01 | $7700.00 | Window Closed / Lapsed |