16 results
8-K
EX-4.1
CLIR
ClearSign Technologies Corp
23 Apr 24
Entry into a Material Definitive Agreement
7:00am
8-K
EX-4.4
CLIR
ClearSign Technologies Corp
19 Apr 24
ClearSign Technologies Corporation Announces Pricing of $9.3 Million Public Offering and Concurrent Private Placement of Common Stock and Warrants
8:45am
8-K
EX-4.2
CLIR
ClearSign Technologies Corp
19 Apr 24
ClearSign Technologies Corporation Announces Pricing of $9.3 Million Public Offering and Concurrent Private Placement of Common Stock and Warrants
8:45am
8-K
EX-4.1
CLIR
ClearSign Technologies Corp
19 Apr 24
ClearSign Technologies Corporation Announces Pricing of $9.3 Million Public Offering and Concurrent Private Placement of Common Stock and Warrants
8:45am
8-K
EX-4.3
CLIR
ClearSign Technologies Corp
19 Apr 24
ClearSign Technologies Corporation Announces Pricing of $9.3 Million Public Offering and Concurrent Private Placement of Common Stock and Warrants
8:45am
8-K/A
EX-4.1
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24 Jan 17
Financial Statements and Exhibits
12:00am
8-K
EX-4.1
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7 Dec 16
Incorporated under the laws of the State of Washington
12:00am
POS AM
EX-4.1
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25 Apr 12
Prospectus update (post-effective amendment)
12:00am
S-1
EX-4.2
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14 Nov 11
IPO registration
12:00am
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