Title: Fingerprint powder and method of application

Abstract: Fingerprint powder and method for developing latent fingerprints therewith, such powder comprised of a powder carrier, especially a mixture of silica and talc, containing a coloring agent, preferably a fluorescent dye. The fingerprint powder can be applied by blowing the powder over a surface containing latent fingerprints, or by brushing or pouring the powder on such surface, or by immersion thereof in such powder, thus developing and revealing a bright, sharp fingerprint, which can be photographed or lifted by applying tape or a strippable coating over the print.

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Inventors: Molina, Orlando G. (Westminster, CA, US)

Application Number: 669926
Filing Date: 1976-03-24
Publication_date: 1979-11-27
Assignee: Rockwell International Corporation (El Segundo, CA)
Primary Class(es): 427/1 73/104, 156/241, 252/1, 252/301.16, 252/408.1, 356/36, 427/145, 427/157, 427/555
Other Classes:
US Patent Ref:

2066535	Jan, 1937	Lucas	427/1.
2986831	Jun, 1961	Terek et al.	427/1.
3075852	Jan, 1963	Bonora	427/1.
3408217	Oct, 1968	Obuchi	427/1.
3492140	Jan, 1970	Honjo et al.	427/1.

Other Refs:
Primary Examiner: Pianalto, Bernard D.
Assistant Examiner:
Attorney: Silberberg; Charles T., Geldin; Max, Humphries; L. Lee