Patent US2675293A successfully refreshed from Google Patents.
US2675293A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Insecticide vaporizer and method of dispersing ddt
Assignee: Individual
•
Filing: 1946-10-29
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Granted: 1954-04-13
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Expires: 1966-10-29
Abstract
No abstract record available.
Inventors
- 👤 Baker Arthur Howard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:34
CPC Classifications
A; A01; A01M; A01M1/00; A01M1/20; A01M1/2022; A01M1/2061; A01M1/2077
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
140 words
THE METHOD OF MAINTAINING SUBSTANTIALLY FREE FROM CERTAIN AIRBORNE VERMIN, A VENTILATED ROOM SUITABLE FOR HUMAN OCCUPANCY, WHICH COMPRISES TREATING A VAPORIZABLE ORGANIC COMPOSITION OF THE TYPE THAT HAS A MELTING POINT ABOVE 100* C., WHICH WHEN DISSEMINATED IN THE AIR AT CONCENTRATION IN THE ORDER OF 5MG. PER CUBIC METER, IS LETHAL TO THE ORGANISMS SOUGHT TO BE KILLED AND HARMLESS TO HIGHER LIFE, AND WHICH CONTAINS A SUBSTANTIAL PROPORTION OF DICHLORODIPHENYLTRICHLORETHANE, BY APPLYING HEAT TO A MASS OF THE COMPOSITION EXPOSED WITHIN BUT SPACED FROM THE WALL SURFACE OF THE ROOM BY A DISTANCE SUBSTANTIALLY GREATER THAN THAT WIDTH OF SAID EXPOSED MASS AT SUBSTANTIALLY RIGHT ANGLES TO SUCH WALL SURFACE AND MAINTAINING ITS TEMPERATURE BETWEEN 100* AND 130* C., IN ORDER TO MAINTAIN THE COMPOSITION UNDER CONDITIONS SUCH AS TO AVOID DECOMPOSITION, BUT AT TEMPERATURE SUFFICIENT FOR
Claim 2
Independent Claim
140 words
THE METHOD OF MAINTAINING SUBSTANTIALLY FREE FROM CERTAIN AIRBORNE VERMIN, A VENTILATED ROOM SUITABLE FOR HUMAN OCCUPANCY, WHICH COMPRISES TREATING A VAPORIZABLE ORGANIC COMPOSITION OF THE TYPE THAT HAS A MELTING POINT ABOVE 100* C., WHICH WHEN DISSEMINATED IN THE AIR AT CONCENTRATION IN THE ORDER OF 5MG. PER CUBIC METER, IS LETHAL TO THE ORGANISMS SOUGHT TO BE KILLED AND HARMLESS TO HIGHER LIFE, AND WHICH CONTAINS A SUBSTANTIAL PROPORTION OF DICHLORODIPHENYLTRICHLORETHANE, BY APPLYING HEAT TO A MASS OF THE COMPOSITION EXPOSED WITHIN BUT SPACED FROM THE WALL SURFACE OF THE ROOM BY A DISTANCE SUBSTANTIALLY GREATER THAN THAT WIDTH OF SAID EXPOSED MASS AT SUBSTANTIALLY RIGHT ANGLES TO SUCH WALL SURFACE AND MAINTAINING ITS TEMPERATURE BETWEEN 100* AND 130* C., IN ORDER TO MAINTAIN THE COMPOSITION UNDER CONDITIONS SUCH AS TO AVOID DECOMPOSITION, BUT AT TEMPERATURE SUFFICIENT FOR
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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) | 1957-04-12 | 1957-10-12 | 1958-04-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-12 | 1961-10-12 | 1962-04-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-12 | 1965-10-12 | 1966-04-13 | $7700.00 | Window Closed / Lapsed |