US2826527A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilized phosphide pesticide composition
Assignee: Evonik Operations GmbH
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Filing: 1953-06-17
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Granted: 1958-03-11
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Expires: 1973-06-17
Abstract
No abstract record available.
Inventors
- 👤 Huter Ludwig
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:09
CPC Classifications
C; C01; C01B; C01B25/00; C01B25/06; A; A01; A01N; A01N59/00; A01N59/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
132 words
A TABLET ADAPTED FOR USE IN PEST CONTROL OF A COMPRESSED ADMIXTURE OF A FINELY DIVIDED METAL PHOSPHIDE CAPABLE OF BEING DECOMPOSED BY WATER TO FORM PHOSPHINE, THE AVERAGE PARTICLE SIZE OF SAID FINELY DIVIDED METAL PHOSPHIDE BEING LESS THAN 6.10-2 CM., AND AT LEAST ONE SUBSTANCE WHICH DECOMPOSES IN AIR AT MODERATELY ELEVATED TEMPERATURE WITH THE EVOLUTION OF AN INERT NONCOMBUSTIBLE GAS CONTAINING CARBON DIOXIDE SELECTED FROM THE GROUP CONSISTING OF SODIUM BICARBONATE, AMMONIUM CARBONATE, AMMONIUM BICARBONATE, HARTSHORN SALT, AMMONIUM CARBAMATE, AMMONIUM CYANATE AND UREA, SAID SUBSTANCE BEING PRESENT IN A QUANITY SUFFICIENT THAT THE GAS EVOLVED UNDER INFLUENCE OF THE HEAT OF HYDROLYSIS OF THE PHOSPHIDE UPON ACESS OF WATER TO SUCH TABLET SUPPRESSES SPONTANEOUS COMBUSTION OF THE HYDROGEN PHOSPHIDE EVOLVED FROM THE METAL PHOSPHIDE UPON ACCESS TO SUCH WATER.
Claim 2
Dependent Claim
132 words
A TABLET ADAPTED FOR USE IN PEST CONTROL OF A COMPRESSED ADMIXTURE OF A FINELY DIVIDED METAL PHOSPHIDE CAPABLE OF BEING DECOMPOSED BY WATER TO FORM PHOSPHINE, THE AVERAGE PARTICLE SIZE OF SAID FINELY DIVIDED METAL PHOSPHIDE BEING LESS THAN 6.10-2 CM., AND AT LEAST ONE SUBSTANCE WHICH DECOMPOSES IN AIR AT MODERATELY ELEVATED TEMPERATURE WITH THE EVOLUTION OF AN INERT NONCOMBUSTIBLE GAS CONTAINING CARBON DIOXIDE SELECTED FROM THE GROUP CONSISTING OF SODIUM BICARBONATE, AMMONIUM CARBONATE, AMMONIUM BICARBONATE, HARTSHORN SALT, AMMONIUM CARBAMATE, AMMONIUM CYANATE AND UREA, SAID SUBSTANCE BEING PRESENT IN A QUANITY SUFFICIENT THAT THE GAS EVOLVED UNDER INFLUENCE OF THE HEAT OF HYDROLYSIS OF THE PHOSPHIDE UPON ACESS OF WATER TO SUCH TABLET SUPPRESSES SPONTANEOUS COMBUSTION OF THE HYDROGEN PHOSPHIDE EVOLVED FROM THE METAL PHOSPHIDE UPON ACCESS TO SUCH WATER.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-10 | 1961-09-09 | 1962-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-10 | 1965-09-09 | 1966-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-10 | 1969-09-09 | 1970-03-11 | $7700.00 | Window Closed / Lapsed |