Research Frontiers(REFR) - 2021 Q1 - Quarterly Report

FORM 10-Q QUARTERLY REPORT PURSUANT TO SECTION 13 or 15(d) of THE SECURITIES AND EXCHANGE ACT OF 1934 For the quarter ended March 31, 2021 Commission File Number 000-14893 RESEARCH FRONTIERS INCORPORATED (Exact name of registrant as specified in its charter) | DELAWARE | 11-2103466 | | --- | --- | | (State or other jurisdiction of | (I.R.S. Employer | | incorporation or organization) | Identification No.) | | 240 CROSSWAYS PARK DRIVE | | | WOODBURY, NEW YORK | 11797-2033 | | (Address of principal executive ...