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US2633444A
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Alkali metal nitrite and ammonium salt of an inorganic acid gas generating composition containing a vaporizable pesticide
Assignee: Imperial Chemical Industries Ltd
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Filing: 1949-12-05
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Granted: 1953-03-31
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Expires: 1969-12-05
Abstract
No abstract record available.
Inventors
- 👤 Douglas J B Marke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:41
CPC Classifications
A; A01; A01N; A01N25/00; A01N25/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
A FUMIGATING COMPOSITION CAPABLE OF PROPAGATING THROUGHOUT ITSELF AT ORDINARY ATMOSPHERIC PRESSURE AND PARTICULARLY AT SLIGHTLY HIGHER PRESSURE AN EXOTHERMIC REACTION WHEN INITIATED BY LOCAL HEATING, SAID COMPOSITION CONSISTING OF A MIXTURE COMPRISING FROM 7% TO 30% BY WEIGHT OF A THERMALLY VAPORIZABLE PESTICIDAL COMPOUND AND SUBSTANTIALLY STOICHIOMETRICALLY EQUIVALENT QUANTITIES OF AN ALKALI METAL NITRITE OF AN ATOMIC WEIGHT UP TO AND INCLUDING 40 AND A NON-DILIQUESCENT, NON-EXPLOSIVE AMMONIUM SALT OF AN INORGANIC ACID, THE HEAT OF SAID REACTION BEING INSUFFICIENT TODECOMPOSE THE SAID PESTICIDAL COMPOUND.
Claim 2
Dependent Claim
86 words
A FUMIGATING COMPOSITION CAPABLE OF PROPAGATING THROUGHOUT ITSELF AT ORDINARY ATMOSPHERIC PRESSURE AND PARTICULARLY AT SLIGHTLY HIGHER PRESSURE AN EXOTHERMIC REACTION WHEN INITIATED BY LOCAL HEATING, SAID COMPOSITION CONSISTING OF A MIXTURE COMPRISING FROM 7% TO 30% BY WEIGHT OF A THERMALLY VAPORIZABLE PESTICIDAL COMPOUND AND SUBSTANTIALLY STOICHIOMETRICALLY EQUIVALENT QUANTITIES OF AN ALKALI METAL NITRITE OF AN ATOMIC WEIGHT UP TO AND INCLUDING 40 AND A NON-DILIQUESCENT, NON-EXPLOSIVE AMMONIUM SALT OF AN INORGANIC ACID, THE HEAT OF SAID REACTION BEING INSUFFICIENT TODECOMPOSE THE SAID PESTICIDAL COMPOUND.
References Cited (Backward Citations)
US2008489A
Cited
US2440082A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-30 | 1956-09-29 | 1957-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-30 | 1960-09-29 | 1961-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-30 | 1964-09-29 | 1965-03-31 | $7700.00 | Window Closed / Lapsed |