US3341335A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of sterilizing dry particulate material
Assignee: Norda Essential Oil and Chemical Co
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Filing: 1963-04-01
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Granted: 1967-09-12
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Expires: 1983-04-01
Abstract
No abstract record available.
Inventors
- 👤 Eolkin Dave
- 👤 Robert J Bouthilet
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:39
CPC Classifications
A; A23; A23B; A23B2/00; A23B2/70; A23B2/725; A23B2/729; A23B2/742; A23B2/754; A23B2/758
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
METHOD FOR STERILIZING A WATER-CONTAINING COMMERICALLY DRY PARTICULATE MATERIAL COMPRISING ESTABLISHING A FLOW OF CARRIER GAS AND VAPORIZED HYDROCARBON DIESTER OF PYROCARBONIC ACID, AND CONTACTING SAID MATERIAL SUFFICIENTLY WITH SAID FLOW SO THAT SAID MATERIAL ABSORBS ABOUT .000001-.001% BY WEIGHT OF SAID DIESTER TO STERILIZE THE MATERIAL WHILE MAINTAINING SAID DIESTER IN THE VAPOR STATE, AND AFTER STERILIZATION HAS BEEN COMPLETED, PERMITTING THE RESIDUAL DIESTER TO REMAIN ON THE MATERIAL T REACT WITH WATER CONTENT OF THE DRY MATERIAL TO DECOMPOSE THE DIESTER INTO PRODUCTS INCLUDING CARBON DIOXIDE AND ALCOHOL.
Claim 2
Dependent Claim
90 words
METHOD FOR STERILIZING A WATER-CONTAINING COMMERICALLY DRY PARTICULATE MATERIAL COMPRISING ESTABLISHING A FLOW OF CARRIER GAS AND VAPORIZED HYDROCARBON DIESTER OF PYROCARBONIC ACID, AND CONTACTING SAID MATERIAL SUFFICIENTLY WITH SAID FLOW SO THAT SAID MATERIAL ABSORBS ABOUT .000001-.001% BY WEIGHT OF SAID DIESTER TO STERILIZE THE MATERIAL WHILE MAINTAINING SAID DIESTER IN THE VAPOR STATE, AND AFTER STERILIZATION HAS BEEN COMPLETED, PERMITTING THE RESIDUAL DIESTER TO REMAIN ON THE MATERIAL T REACT WITH WATER CONTENT OF THE DRY MATERIAL TO DECOMPOSE THE DIESTER INTO PRODUCTS INCLUDING CARBON DIOXIDE AND ALCOHOL.
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) | 1970-09-11 | 1971-03-13 | 1971-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-09-11 | 1975-03-13 | 1975-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-09-11 | 1979-03-13 | 1979-09-12 | $7700.00 | Window Closed / Lapsed |