Form SC 13G/A - Statement of Beneficial Ownership by Certain Investors: [Amend]
SEC Accession No. 0000834237-21-008738
Filing Date
2021-07-12
Accepted
2021-07-12 08:29:16
Documents
1

Document Format Files

Seq Description Document Type Size
1 us7609111072_071021.txt SC 13G/A 10400
  Complete submission text file 0000834237-21-008738.txt   12106
Mailing Address 240 CROSSWAYS PARK DR WOODBURY NY 11797-2033
Business Address 240 CROSSWAYS PARK DR WOODBURY NY 11797-2033 5163641902
RESEARCH FRONTIERS INC (Subject) CIK: 0000793524 (see all company filings)

EIN.: 112103466 | State of Incorp.: DE | Fiscal Year End: 1231
Type: SC 13G/A | Act: 34 | File No.: 005-38016 | Film No.: 211084426
SIC: 6794 Patent Owners & Lessors

Mailing Address 55 EAST 52ND STREET NEW YORK NY 10055
Business Address 55 EAST 52ND STREET NEW YORK NY 10055 212-810-5300
BlackRock Inc. (Filed by) CIK: 0001364742 (see all company filings)

EIN.: 320174431 | State of Incorp.: DE | Fiscal Year End: 1231
Type: SC 13G/A
SIC: 6211 Security Brokers, Dealers & Flotation Companies