SC 13G | SEC Filings Hub

Filing metadata

Accession number: 0001144204-13-002490
Form type: SC 13G
Filer: CLEARSIGN COMBUSTION CORP
CIK: CIK 1434524
Filed: Jan 15, 2013
Reporting period: Apr 25, 2012
Description: Passive 5%+ stake

Documents

0001144204-13-002490-index.htm

Complete submission

0001144204-13-002490.txt

directory listing

Filed by

CLEARSIGN COMBUSTION CORP