Patent US4557467A successfully refreshed from Google Patents.
US5064083A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Closure device
Assignee: West Pharmaceutical Services Inc
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Filing: 1990-03-08
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Granted: 1991-11-12
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Expires: 2010-03-08
Abstract
Abstract A device for use with containers, including an elastomeric member sized to engage the container. The member has a first portion for contact with the container to form a seal and a second portion having a polyparaxylylene coating to form a barrier between the member and the contents of the container.
Inventors
- 👤 Barbara Alexander
- 👤 Patty H. Kiang
- 👤 Richard Lusch
- 👤 Val Romberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:17
CPC Classifications
B; B65; B65D; B65D51/00; B65D51/002; A; A61; A61M; A61M5/00; A61M5/178; A61M5/31; A61M5/315; A61M5/31511; A61M5/31513; B65D2539/00; B65D2539/001; B65D2539/008
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
83 words
A device for use with containers, comprising an elastomeric member sized to engage the container, said member having a first portion for contact with said container to form a seal and a second portion having a polyparaxylylene coating of from 0.1 to 25.0 microns in thickness to form a barrier between said member and the contents of said container, said first and second portion having a boundary area wherein said coating has a decreasing cross section from said coated to said uncoated portion.
Claim 2
Independent Claim
83 words
A device for use with containers, comprising an elastomeric member sized to engage the container, said member having a first portion for contact with said container to form a seal and a second portion having a polyparaxylylene coating of from 0.1 to 25.0 microns in thickness to form a barrier between said member and the contents of said container, said first and second portion having a boundary area wherein said coating has a decreasing cross section from said coated to said uncoated portion.
Claim 3
Dependent Claim
17 words
The device of claim 1, wherein said seal has a vacuum retention of at least above 96%.
Claim 4
Dependent Claim
16 words
The device of claim 1, wherein said seal has a seal integrity of about 0.1 mg.
Claim 5
Dependent Claim
16 words
The device of claim 1, wherein said coating is from 0.1 to 25.0 microns in thickness.
Claim 6
Dependent Claim
100 words
A closure device for containers, comprising an elastomeric closure member sized to engage the discharge bore of a container, said member having a first portion for contact with said bore to form a seal having a vacuum retention of at least 96%, and a second portion having a polyparaxylylene coating to form a barrier between said elastomeric member and the contents of the container, said coating being from about 0.1 to about 25 microns in thickness, said first and second portions having a boundary area wherein said coating has a decreasing cross section from said coated to said uncoated portion.
Claim 7
Dependent Claim
100 words
A closure device for containers, comprising an elastomeric closure member sized to engage the discharge bore of a container, said member having a first portion for contact with said bore to form a seal having a vacuum retention of at least 96%, and a second portion having a polyparaxylylene coating to form a barrier between said elastomeric member and the contents of the container, said coating being from about 0.1 to about 25 microns in thickness, said first and second portions having a boundary area wherein said coating has a decreasing cross section from said coated to said uncoated portion.
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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) | 1994-11-11 | 1995-05-13 | 1995-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-11-11 | 1999-05-13 | 1999-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-11-11 | 2003-05-13 | 2003-11-12 | $7700.00 | Window Closed / Lapsed |