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Rescinded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
Record Details
- Patent number
- US 4767564
- Application
- 06116132
- Aerospace match
- No
- Dataset source
- 35 USC §181 SO records
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Back to patent indexSource: USPTO 35 USC §181 secrecy order records