Research/Patents/US 4767564
US 4767564

CHEMICAL COMPOSITION FOR THE DESTRUCTION OF MICROFILM PRODUCTS

Assignee

Filed

Feb 4, 1980

Granted

Aug 30, 1988

Location

HAYMARKET VA US

Abstract

A chemical solution for effecting the rapid destruction of microfilm products comprising a mixture of 4-butyrolactone, methyl Cellosolve acetate and aqueous sodium hypochlorite.

Source: Google Patents

35 USC §181 Secrecy Order

Imposed

May 21, 1982

Rescinded

May 18, 1984

Duration

1 year, 12 months

Inventor

  • 1JUDITH F. KITCHENS
Back to patent indexSource: USPTO 35 USC §181 secrecy order records