Patent US4154342A successfully refreshed from Google Patents.
US4154342A
Expired / Lapsed
US
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Sterilizable package
Assignee: Boehringer Ingelheim GmbH
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Filing: 1977-07-28
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Granted: 1979-05-15
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Expires: 1997-07-28
Abstract
Abstract A sterilizable package for medical or surgical instruments or the like, said package consisting essentially of a rigid or semi-rigid container including a filter element made of porous plastic and adapted to allow the passage of a sterilizing gas therethrough, but prevent the entry of bacteria into the package.
Inventors
- 👤 Henry G. Wallace
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:54
CPC Classifications
B; B65; B65D; B65D81/00; B65D81/18; A; A61; A61L; A61L2/00; A61L2/02; A61L2/022; B65D51/00; B65D51/16; B65D51/1605; B65D51/1616; A61B; A61B50/00; A61B50/30; A61M; A61M2205/00; A61M2205/75; A61M2205/7536
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
108 words
A container for medical or surgical instruments to be gas-sterilized, said container consisting of a substantially gas-impermeable, open-ended plastic receptable adapted to receive a medical or surgical instrument, a substantially gas-impermeable plastic closure cap tightly covering the open end of said receptacle and having an aperture therein, and a porous plastic filter element mounted within said closure cap to entirely cover said aperture, said filter element being adapted to allow the passage of gases into and out of said container while preventing the passage of bacteria into said container, and the thickness of said filter element being at least as great as the thinnest part of the container.
Claim 2
Dependent Claim
108 words
A container for medical or surgical instruments to be gas-sterilized, said container consisting of a substantially gas-impermeable, open-ended plastic receptable adapted to receive a medical or surgical instrument, a substantially gas-impermeable plastic closure cap tightly covering the open end of said receptacle and having an aperture therein, and a porous plastic filter element mounted within said closure cap to entirely cover said aperture, said filter element being adapted to allow the passage of gases into and out of said container while preventing the passage of bacteria into said container, and the thickness of said filter element being at least as great as the thinnest part of the container.
Claim 3
Dependent Claim
16 words
A container of claim 1, where the filter element is from 1 to 5 mm thick.
Claim 4
Dependent Claim
14 words
A container of claim 1, where the filter element is about 3 mm thick.
Claim 5
Dependent Claim
14 words
A container of claim 1, where the filter element is made of porous polyethylene.
Claim 6
Dependent Claim
21 words
A container of claim 1, where said closure cap comprises a retaining member arranged to retain the filter element in position.
Claim 7
Dependent Claim
30 words
A container of claim 1, where the closure cap includes a tubular extension provided with an external flange defining a recess to receive a tubular open end of the receptacle.
References Cited (Backward Citations)
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US3157481A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1982-05-14 | 1982-11-13 | 1983-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-05-14 | 1986-11-13 | 1987-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-05-14 | 1990-11-13 | 1991-05-15 | $7700.00 | Window Closed / Lapsed |