US3620265A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for sterilizing gas containers and filling same with a sterile gas
Assignee: LIF O GEN Inc
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Filing: 1970-07-09
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Granted: 1971-11-16
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Expires: 1990-07-09
Abstract
Abstract One or more gas containers connected by a conduit means to a feed source are sterilized and sterilely filled by the evacuation of the containers and conduit means to a low pressure, the introduction of a sterilizing agent into the containers and conduit means for a suitable holding period, the removal of the sterilizing agent by a further evacuation of the containers and conduit means, and the introduction of a gaseous feed stock to the containers through a sterilizing unit in the conduit means.
Inventors
- 👤 Gordon N Strople
- 👤 Justin W Mills Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 16:58
CPC Classifications
A; A61; A61L; A61L2/00; A61L2/16; A61L2/20; A61L2/206
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
187 words
A sterilizing and packaging method for providing a container of compressed sterile gas suitable for medical use and food, drug and cosmetic packaging, said container having closure means thereon, which method comprises maintaining a selected container sealed against the entrance of ambient air and contaminants and at a temperature below 212* F., and while maintaining said container so sealed performing the steps of evacuating the container via said closure means to completely remove therefrom all traces of ambient air, introducing into said evacuated container via said closure means a gaseous sterilizing agent capable of destroying all micro-organisms therein to sterilize the interior of said container, maintaining said sterilizing agent in the container for a predetermined holding period sufficient to destroy all micro-organisms in said container, evacuating said container via said closure means to remove therefrom all traces of said sterilizing agent, sterilizing a selected compressed gas to remove all micro-organisms therefrom, introducing a predetermined quantity of the sterilized compressed gas into said sterilized container via said closure means, and closing the closure means for said sterilized container to maintain the sterilized gas therein in a sterile condition.
Claim 2
Dependent Claim
187 words
A sterilizing and packaging method for providing a container of compressed sterile gas suitable for medical use and food, drug and cosmetic packaging, said container having closure means thereon, which method comprises maintaining a selected container sealed against the entrance of ambient air and contaminants and at a temperature below 212* F., and while maintaining said container so sealed performing the steps of evacuating the container via said closure means to completely remove therefrom all traces of ambient air, introducing into said evacuated container via said closure means a gaseous sterilizing agent capable of destroying all micro-organisms therein to sterilize the interior of said container, maintaining said sterilizing agent in the container for a predetermined holding period sufficient to destroy all micro-organisms in said container, evacuating said container via said closure means to remove therefrom all traces of said sterilizing agent, sterilizing a selected compressed gas to remove all micro-organisms therefrom, introducing a predetermined quantity of the sterilized compressed gas into said sterilized container via said closure means, and closing the closure means for said sterilized container to maintain the sterilized gas therein in a sterile condition.
Claim 3
Dependent Claim
43 words
The method claimed in claim 1 wherein the gaseous sterilizing agenT is flammable and including the step of introducing into the sterilizing agent while in the container a sterile inert gas in sufficient quantity to dilute the sterilizing agent to a nonflammable concentration.
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) | 1974-11-15 | 1975-05-17 | 1975-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-15 | 1979-05-17 | 1979-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-15 | 1983-05-17 | 1983-11-16 | $7700.00 | Window Closed / Lapsed |