Current report filing

Cover

v3.21.2
Cover
Dec. 16, 2021
Document Type 8-K/A
Amendment Flag true
Amendment Description EXPLANATORY NOTE
Document Period End Date Dec. 16, 2021
Entity File Number 001-40611
Entity Registrant Name CleanTech Acquisition Corp.
Entity Central Index Key 0001849820
Entity Tax Identification Number 85-1699753
Entity Incorporation, State or Country Code DE
Entity Address, Address Line One 207 West 25th Street
Entity Address, Address Line Two 9th Floor
Entity Address, City or Town New York
Entity Address, State or Province NY
Entity Address, Postal Zip Code 10001
City Area Code (212)
Local Phone Number 494-9005
Written Communications true
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Entity Emerging Growth Company true
Elected Not To Use the Extended Transition Period false
Common Stock [Member]  
Title of 12(b) Security Common Stock
Trading Symbol CLAQ
Security Exchange Name NASDAQ
Warrants  
Title of 12(b) Security Warrants
Trading Symbol CLAQW
Security Exchange Name NASDAQ
Rights [Member]  
Title of 12(b) Security Rights
Trading Symbol CLAQR
Security Exchange Name NASDAQ
Units  
Title of 12(b) Security Units
Trading Symbol CLAQU
Security Exchange Name NASDAQ