Patent US2820761A successfully refreshed from Google Patents.
US2820761A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carbon dioxide composition
Assignee: Specialties Development Corp
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Filing: 1953-09-25
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Granted: 1958-01-21
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Expires: 1973-09-25
Abstract
No abstract record available.
Inventors
- 👤 Jr Charles Anthony
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 15:09
CPC Classifications
A; A62; A62D; A62D1/00; A62D1/0092
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
144 words
A FLUID CARBON DIOXIDE COMPOSITION STORED UNDER PRESSURE CONSISTING ESSENTIALLY OF CARBON DIOXIDE AND A MATERIAL SELECTED FROM THE GROUP CONSISTING OF TRIMETHYL BORATE, TRIETHYL BORATE, TRIBUTYL BORATE, TRIAMYL BORATE, METHYL CARBONATE, ETHYL CARBONATE, PROPYL CARBONATE, DIETHYL OXALATE, DIBUTYL OXALATE, TRIMETHYL PHOSPHATE, TRIETHYL PHOSPHATE, TRIBUTYL PHOSPHATE, DIMETHYL PHATHALATE, DIETHYL PHATHALATE, DIBUTYL PHATHALATE, DIMAYL PHALATE, BUTYL BENZLY PHTHALATE, BUTYL PHTHALYL BUTYL GLYCOLLATE, CRESYL DIPHENYL PHOSPHATE, DI (2-ETHYLHEXYL) ADIPATE, DI (2-ETHYLHEXYL) PHTHALATE, DI (2-ETHYLHEXYL) TETRAHYDROHEXOATE), ETHYL PHTHALYL ETHYL GLYCOLLATE, METHYL PHTHALYL HEXOATE)M ETHYL PHTHALYL ETHYL GLYCOLLATE, EMTHYL PHATHALYL ETHYL GYLCOLLATE, TRIETHYLENE GLYCOL DI (2-ETHYLBUTYRATE), TRIETHYLENE GLYCOL DI (2-ETHYLHEXOATE), TRI (2-ETHYLHEXYL) PHOSPHATE AND TRICRESYL PHOSPHATE WHICH ARE MISCIBLE WITH LIQUID CARBON DIOXIDE, SAID MATERIAL BEING PRESENT IN AN AMOUNT SUFFICIENT TO SUPPRESS THE GENERATION OF ELECTROSTATIC CHARGES UPON DISCHARGE OF THE CARBON DIOXIDE UNDER PRESSURE CONDITIONS WHEREBY THE CARBON DIOXIDE WILL BE PARTIALLY CONVERTED INTO SNOW PARTICLES.
Claim 2
Dependent Claim
144 words
A FLUID CARBON DIOXIDE COMPOSITION STORED UNDER PRESSURE CONSISTING ESSENTIALLY OF CARBON DIOXIDE AND A MATERIAL SELECTED FROM THE GROUP CONSISTING OF TRIMETHYL BORATE, TRIETHYL BORATE, TRIBUTYL BORATE, TRIAMYL BORATE, METHYL CARBONATE, ETHYL CARBONATE, PROPYL CARBONATE, DIETHYL OXALATE, DIBUTYL OXALATE, TRIMETHYL PHOSPHATE, TRIETHYL PHOSPHATE, TRIBUTYL PHOSPHATE, DIMETHYL PHATHALATE, DIETHYL PHATHALATE, DIBUTYL PHATHALATE, DIMAYL PHALATE, BUTYL BENZLY PHTHALATE, BUTYL PHTHALYL BUTYL GLYCOLLATE, CRESYL DIPHENYL PHOSPHATE, DI (2-ETHYLHEXYL) ADIPATE, DI (2-ETHYLHEXYL) PHTHALATE, DI (2-ETHYLHEXYL) TETRAHYDROHEXOATE), ETHYL PHTHALYL ETHYL GLYCOLLATE, METHYL PHTHALYL HEXOATE)M ETHYL PHTHALYL ETHYL GLYCOLLATE, EMTHYL PHATHALYL ETHYL GYLCOLLATE, TRIETHYLENE GLYCOL DI (2-ETHYLBUTYRATE), TRIETHYLENE GLYCOL DI (2-ETHYLHEXOATE), TRI (2-ETHYLHEXYL) PHOSPHATE AND TRICRESYL PHOSPHATE WHICH ARE MISCIBLE WITH LIQUID CARBON DIOXIDE, SAID MATERIAL BEING PRESENT IN AN AMOUNT SUFFICIENT TO SUPPRESS THE GENERATION OF ELECTROSTATIC CHARGES UPON DISCHARGE OF THE CARBON DIOXIDE UNDER PRESSURE CONDITIONS WHEREBY THE CARBON DIOXIDE WILL BE PARTIALLY CONVERTED INTO SNOW PARTICLES.
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) | 1961-01-20 | 1961-07-22 | 1962-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-01-20 | 1965-07-22 | 1966-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-01-20 | 1969-07-22 | 1970-01-21 | $7700.00 | Window Closed / Lapsed |