GB Patent

GB1483651A — Methods of purifying gas containing nitrogen oxides and compositions used therefor

Assigned to Panasonic Holdings Corp · Expires 1977-08-24 · 49y expired

What this patent protects

1483651 Gas purification; nitrogen oxides MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 14 Oct 1974 [19 Oct 1973 18 Dec 1973 28 Dec 1973] 44434/74 Heading C1A A composition for removing nitrogen oxides, in particular NO, from gases comprises a mixture of an oxidizing agent with calcium s…

USPTO Abstract

1483651 Gas purification; nitrogen oxides MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 14 Oct 1974 [19 Oct 1973 18 Dec 1973 28 Dec 1973] 44434/74 Heading C1A A composition for removing nitrogen oxides, in particular NO, from gases comprises a mixture of an oxidizing agent with calcium sulphate and/or hydroxide, the oxidizing agent being such that nitrogen gas saturated with water at 30‹ C. and containing 85 p.p.m. of NO when contacted with the composition at a space velocity of 17,000 hr.<SP>-1</SP> is purified of initially >80%, and after 2 hours, >50% of the NO. Oxidizing agents specified are NaClO 2 and KMNO 4 . When the former is used any Cl 2 generated may be removed by Na 2 CO 3 or activated charcoal.

Drugs covered by this patent

Patent Metadata

Patent number
GB1483651A
Jurisdiction
GB
Classification
—
Expires
1977-08-24
Drug substance claim
No
Drug product claim
No
Assignee
Panasonic Holdings Corp
Source
FDA Orange Book + USPTO grounding via Google Patents

Bibliographic data sourced from FDA Orange Book + USPTO public records. Plain-English summary generated by AI grounded in source text. Patent term extensions (PTR, SPC, pediatric) may shift the effective expiry. Not legal advice.

Track this patent

Get a daily-checked alert when vulnerability score, expiry, classification, or assignee changes. Email, Slack, or Teams delivery. Pro: 50 watches, Free: 3.