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EFFECT

Notice of Effectiveness

ClearSign Technologies Corp Filed 2025-08-21 Acc 9999999995-25-002705

Documents 1

EFFECT Notice of Effectiveness , xslEFFECTX01/primary_doc.xml

Around this filing

2025-08-22 424B4 Prospectus
2025-08-21 EFFECT Notice of Effectiveness
2025-08-20 CORRESP Correspondence Between Filers and SEC Staff
2025-08-20 S-1/A Registration Statement
2025-08-15 8-K Results of operations · Regulation FD disclosure
2025-08-14 UPLOAD SEC-generated Letter
2025-07-28 EFFECT Notice of Effectiveness

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