Patent US315158A successfully refreshed from Google Patents.
Patent US4017415A successfully refreshed from Google Patents.
US4017415A
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Process for the restoration of the chemical lighting potential of a chemiluminescent lighting formulation
Assignee: Omniglow Corp
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Filing: 1975-05-29
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Granted: 1977-04-12
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Expires: 1995-05-29
Abstract
Abstract Oxalate diester solutions for use in two component chemical light systems sometimes fail to produce high intensity light instantaneously. The invention is a method of restoring activity of such solutions by treatment with alumina.
Inventors
- 👤 Arthur Albert Doering
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 16:26
CPC Classifications
C; C09; C09K; C09K11/00; C09K11/06; C09K11/07
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
94 words
An improved method of treatment for oxalate component solution useful in a chemical light system, said oxalate component solution comprising an oxalate diester in liquid solution, and said component prior to treatment having a characteristic failure to produce initial high intensity luminosity on mixture with liquid activator component comprising peroxide and basic catalyst in liquid solvent, said improved method comprising the steps of contacting the defined liquid oxalate component with solid aluminum oxide for a period of time sufficient to correct the defined characteristic failure and then separating the treated liquid from the solid.
Claim 2
Dependent Claim
94 words
An improved method of treatment for oxalate component solution useful in a chemical light system, said oxalate component solution comprising an oxalate diester in liquid solution, and said component prior to treatment having a characteristic failure to produce initial high intensity luminosity on mixture with liquid activator component comprising peroxide and basic catalyst in liquid solvent, said improved method comprising the steps of contacting the defined liquid oxalate component with solid aluminum oxide for a period of time sufficient to correct the defined characteristic failure and then separating the treated liquid from the solid.
Claim 3
Dependent Claim
15 words
A method defined by claim 1 wherein the defined aluminum oxide is neutral activated alumina.
Claim 4
Dependent Claim
15 words
A method defined by claim 1 wherein the defined aluminum oxide is basic activated alumina.
Claim 5
Dependent Claim
19 words
A method defined by claim 1 wherein the defined oxalate component further comprises a fluorescer in the liquid solution.
Claim 6
Dependent Claim
33 words
A method defined by claim 4 wherein the defined oxalate component consists essentially of bis(2,4,5-trichloro-6-carboxypentoxyphenyl) oxalate as the defined oxalate diester and 9,10-bis(phenylethynyl) anthracene as the defined fluorescer, both dissolved in dibutylphthalate solvent.
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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) | 1980-04-11 | 1980-10-11 | 1981-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-04-11 | 1984-10-11 | 1985-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-04-11 | 1988-10-11 | 1989-04-12 | $7700.00 | Window Closed / Lapsed |