Form DEFA14A - Additional definitive proxy soliciting materials and Rule 14(a)(12) material:
SEC Accession No. 0001558370-23-006670
Filing Date
2023-04-25
Accepted
2023-04-25 16:48:08
Documents
3

Document Format Files

Seq Description Document Type Size
1 DEFA14A tmb-20230425xdefa14a.htm DEFA14A 15646
2 GRAPHIC tmb-20230425xdefa14a_bg001.jpg GRAPHIC 158675
3 GRAPHIC tmb-20230425xdefa14a_bg002.jpg GRAPHIC 123241
  Complete submission text file 0001558370-23-006670.txt   405269
Mailing Address 8023 E. 63RD PLACE, SUITE 101 TULSA OK 74133
Business Address 8023 E. 63RD PLACE, SUITE 101 TULSA OK 74133 (918) 236-6461
ClearSign Technologies Corp (Filer) CIK: 0001434524 (see all company filings)

EIN.: 000000000 | State of Incorp.: WA | Fiscal Year End: 1231
Type: DEFA14A | Act: 34 | File No.: 001-35521 | Film No.: 23845555
SIC: 3823 Industrial Instruments For Measurement, Display, and Control