Form DEFA14A - Additional definitive proxy soliciting materials and Rule 14(a)(12) material:
SEC Accession No. 0001104659-25-067457
Filing Date
2025-07-11
Accepted
2025-07-11 17:20:12
Documents
1

Document Format Files

Seq Description Document Type Size
1 DEFA14A tm2520697d2_defa14a.htm DEFA14A 33862
  Complete submission text file 0001104659-25-067457.txt   35024
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.: DE | Fiscal Year End: 1231
Type: DEFA14A | Act: 34 | File No.: 001-35521 | Film No.: 251119727
SIC: 3823 Industrial Instruments For Measurement, Display, and Control
(CF Office: 08 Industrial Applications and Services)