US5654054A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Barrier coating
Assignee: Becton Dickinson and Co
•
Filing: 1995-04-18
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Granted: 1997-08-05
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Expires: 2015-04-18
Abstract
Abstract The present invention is a plastic container coated with a barrier coating. The barrier coating is useful for providing an effective barrier against gas permeability in containers and for extending shelf-life of containers, especially plastic evacuated blood collection devices.
Inventors
- 👤 Yelena G. Tropsha
- 👤 Richard P. Clarke
- 👤 Mitchell K. Antoon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 09:53
CPC Classifications
B; B01; B01L; B01L3/00; B01L3/50; B01L3/508; B01L3/5082; A; A61; A61B; A61B5/00; A61B5/15; A61B5/150007; A61B5/150015; A61B5/15003; A61B5/150351; A61B5/153; A61B5/154; B65; B65D; B65D23/00; B65D23/08; B65D23/0807; B65D23/0814; B65D23/0821; C; C08; C08J; C08J7/00; C08J7/04; C08J7/042; C08J7/0423; C08J7/046; C08J7/048; C08J2323/00; C08J2323/02; C08J2323/10; C08J2323/12; C08J2483/00; C08J2483/04; Y; Y10; Y10T; Y10T428/00; Y10T428/13; Y10T428/131; Y10T428/1317; Y10T428/1352; Y10T428/1379; Y10T428/1383
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
76 words
A sample assembly comprising: a plastic container having an open end, a closed end, an inner surface and an outer surface; and a multi-layer barrier coating applied to the outer surface of said container, said coating having a first layer applied to the outer surface of said container comprising a plasma-deposited inorganic material of aluminum oxide and a second layer applied to said first layer, comprising a parylene polymer or vinylidene chloride-acrylonitrile-methyl methacrylate-methyl acrylate-acrylic acid polymer.
Claim 2
Dependent Claim
76 words
A sample assembly comprising: a plastic container having an open end, a closed end, an inner surface and an outer surface; and a multi-layer barrier coating applied to the outer surface of said container, said coating having a first layer applied to the outer surface of said container comprising a plasma-deposited inorganic material of aluminum oxide and a second layer applied to said first layer, comprising a parylene polymer or vinylidene chloride-acrylonitrile-methyl methacrylate-methyl acrylate-acrylic acid polymer.
Claim 3
Dependent Claim
13 words
The assembly of claim 1 wherein said second layer is a parylene polymer.
Claim 4
Dependent Claim
17 words
The assembly of claim 2 wherein said parylene polymer is parylene N, parylene C or parylene D.
References Cited (Backward Citations)
US4131200A
Cited
US5297561A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2000-08-04 | 2001-02-03 | 2001-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2004-08-04 | 2005-02-03 | 2005-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2008-08-04 | 2009-02-03 | 2009-08-05 | $7700.00 | Window Closed / Lapsed |