US3974368A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chemiluminescent device having longer shelf life
Assignee: Omniglow Corp
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Filing: 1974-11-11
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Granted: 1976-08-10
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Expires: 1994-11-11
Abstract
Abstract Treatment of plastic or metal containers for chemiluminescent light packages by contacting with a chlorosilane, whereby storage stability, and shelf life of fabricated chemiluminescent devices is increased.
Inventors
- 👤 Michael McKay Rauhut
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 23:20
CPC Classifications
F; F21; F21K; F21K2/00; F21K2/06; Y; Y10; Y10S; Y10S206/00; Y10S206/803; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31652; Y10T428/31663; Y10T428/31667
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
72 words
In a chemiluminescent device comprising a translucent polypropylene container containing at least two separated components for making a chemiluminescent mixture within said tube, one of said components comprising an oxalate diester and a fluorescer in organic solvent contacting the inner surface of said polypropylene container, the improvement wherein the inner surface of said polypropylene container is passivated by contacting said surface with a chlorosilane having at least one alkyl or aryl substituent.
Claim 2
Dependent Claim
72 words
In a chemiluminescent device comprising a translucent polypropylene container containing at least two separated components for making a chemiluminescent mixture within said tube, one of said components comprising an oxalate diester and a fluorescer in organic solvent contacting the inner surface of said polypropylene container, the improvement wherein the inner surface of said polypropylene container is passivated by contacting said surface with a chlorosilane having at least one alkyl or aryl substituent.
Claim 3
Dependent Claim
15 words
An improved device according to claim 1 wherein said oxalate diester is a bis(phenyl)oxalate ester.
Claim 4
Dependent Claim
13 words
A device according to claim 2 wherein said oxalate ester is bis(2,4,5-trichloro-6-carbopentoxyphenyl) oxalate.
Claim 5
Dependent Claim
11 words
A device according to claim 1 wherein said silane is dimethyldichlrorsilane.
Claim 6
Dependent Claim
19 words
A device according to claim 1 wherein said container is treated by immersing in a solution of said chlorosilane.
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) | 1979-08-10 | 1980-02-09 | 1980-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-08-10 | 1984-02-09 | 1984-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-08-10 | 1988-02-09 | 1988-08-10 | $7700.00 | Window Closed / Lapsed |