0001144204-18-011797.txt : 20180228
0001144204-18-011797.hdr.sgml : 20180228
20180228163147
ACCESSION NUMBER: 0001144204-18-011797
CONFORMED SUBMISSION TYPE: 4
PUBLIC DOCUMENT COUNT: 1
CONFORMED PERIOD OF REPORT: 20180227
FILED AS OF DATE: 20180228
DATE AS OF CHANGE: 20180228
REPORTING-OWNER:
OWNER DATA:
COMPANY CONFORMED NAME: PIRNAT STEPHEN E
CENTRAL INDEX KEY: 0001547961
FILING VALUES:
FORM TYPE: 4
SEC ACT: 1934 Act
SEC FILE NUMBER: 001-35521
FILM NUMBER: 18651726
MAIL ADDRESS:
STREET 1: 4728 EAST 98TH STREET
CITY: TULSA
STATE: OK
ZIP: 74137
ISSUER:
COMPANY DATA:
COMPANY CONFORMED NAME: CLEARSIGN COMBUSTION CORP
CENTRAL INDEX KEY: 0001434524
STANDARD INDUSTRIAL CLASSIFICATION: INDUSTRIAL INSTRUMENTS FOR MEASUREMENT, DISPLAY, AND CONTROL [3823]
IRS NUMBER: 000000000
STATE OF INCORPORATION: WA
FISCAL YEAR END: 1231
BUSINESS ADDRESS:
STREET 1: 12870 INTERURBAN AVENUE SOUTH
CITY: SEATTLE
STATE: WA
ZIP: 98168
BUSINESS PHONE: (206) 673-4848
MAIL ADDRESS:
STREET 1: 12870 INTERURBAN AVENUE SOUTH
CITY: SEATTLE
STATE: WA
ZIP: 98168
4
1
tv487223_4.xml
OWNERSHIP DOCUMENT
X0306
4
2018-02-27
0
0001434524
CLEARSIGN COMBUSTION CORP
CLIR
0001547961
PIRNAT STEPHEN E
12870 INTERURBAN AVENUE SOUTH
SEATTLE
WA
98168
1
1
0
0
Chief Executive Officer
Common Stock/CLIR
2018-02-27
4
P
0
10000
2.25
A
113947
D
/s/ Stephen E. Pirnat
2018-02-28