Specimen Common Stock Certificate of Avistar Communications Corporation

Summary

This document is a specimen certificate representing shares of common stock in Avistar Communications Corporation, a Delaware corporation. It certifies the holder as the owner of fully paid and nonassessable shares, which are transferable on the corporation's books upon proper endorsement and surrender of the certificate. The certificate must be countersigned by the transfer agent and registered by the registrar to be valid. It also outlines procedures for transferring shares and provides information on how shareholders can request details about the rights and preferences of each class of stock.

EX-4.1 3 ex4-1.txt SPECIMEN CERTIFICATE 1 EXHIBIT 4.1 NUMBER SHARES [AVISTAR LOGO] INCORPORATED UNDER THE LAWS THIS CERTIFICATE IS TRANSFERABLE OF THE STATE OF DELAWARE IN CANTON, MA OR NEW YORK, NY SEE REVERSE FOR CERTAIN DEFINITIONS CUSIP 05379X 20 8 This Certifies that: is the record holder of FULLY PAID AND NONASSESSABLE SHARES OF COMMON STOCK, $.001 PAR VALUE, OF AVISTAR COMMUNICATIONS CORPORATION transferable on the books of the Corporation by the holder hereof in person or by duly authorized attorney upon surrender of this certificate properly endorsed. This certificate is not valid until countersigned by the Transfer Agent and registered by the Registrar. WITNESS the facsimile seal of the Corporation and the facsimile signatures of its duly authorized officers. Dated: [AVISTAR COMMUNICATIONS CORPORATION CORPORATE SEAL MARCH 23, 2000, DELAWARE] /s/ [Signature Illegible] /s/ G. J. BURNETT CHIEF FINANCIAL OFFICER AND SECRETARY PRESIDENT COUNTERSIGNED AND REGISTERED: EQUISERVE TRUST COMPANY, N.A. TRANSFER AGENT AND REGISTRAR BY /s/ [Signature Illegible] AUTHORIZED SIGNATURE 2 The Corporation shall furnish without charge to each stockholder who so requests a statement of the powers, designations, preferences and relative, participating, optional, or other special rights of each class of stock of the Corporation or series thereof and the qualifications, limitations or restrictions of such preferences and/or rights. Such requests shall be made to the Corporation's Secretary at the principal office of the Corporation. The following abbreviations, when used in the inscription on the face of this certificate, shall be construed as though they were written out in full according to applicable laws or regulations: TEN COM -- as tenants in common UNIF GIFT MIN ACT -- ...................Custodian............... TEN ENT -- as tenants by the entireties (Cust) (Minor) JT TEN -- as joint tenants with right of under Uniform Gifts to Minors survivorship and not as tenants Act........................................ in common (State) UNIF TRF MIN ACT -- .............Custodian (until age.........) (Cust) ....................under Uniform Transfers (Minor) to Minors Act.............................. (State)

Additional abbreviations may also be used though not in the above list. For Value Received,___________________________hereby sell(s), assign(s) and transfer(s) unto PLEASE INSERT SOCIAL SECURITY OR OTHER IDENTIFYING NUMBER OF ASSIGNEE - -------------------------------------- - -------------------------------------- _______________________________________________________________________________ (PLEASE PRINT OR TYPEWRITE NAME AND ADDRESS, INCLUDING ZIP CODE, OF ASSIGNEE) _______________________________________________________________________________ _______________________________________________________________________________ ________________________________________________________________________ Shares of the common stock represented by the within certificate, and do hereby irrevocably constitute and appoint ______________________________________________________________________ Attorney to transfer the said stock on the books of the within named Corporation with full power of substitution in the premises. Dated________________________ X_______________________________________________ X_______________________________________________ THE SIGNATURE TO THIS ASSIGNMENT MUST CORRESPOND WITH THE NAME AS WRITTEN UPON THE NOTICE: FACE OF THE CERTIFICATE IN EVERY PARTICULAR, WITHOUT ALTERATION OR ENLARGEMENT OR ANY CHANGE WHATEVER. Signature(s) Guaranteed By_____________________________________ THE SIGNATURE(S) MUST BE GUARANTEED BY AN ELIGIBLE GUARANTOR INSTITUTION (BANKS, STOCKBROKERS, SAVINGS AND LOAN ASSOCIATIONS AND CREDIT UNIONS WITH MEMBERSHIP IN AN APPROVED SIGNATURE GUARANTEE MEDALLION PROGRAM), PURSUANT TO S.E.C. RULE 17Ad-15. AMERICAN BANK NOTE COMPANY 55TH AND SANSOM STREET PHILADELPHIA, PA 19139 ###-###-#### SALES: M. SANDHU: 415 ###-###-#### /HOME 14/LIVE JOBS/A/AVISTAR 66908 PRODUCTION COORDINATOR: MARY TARTAGLAI ###-###-#### PROOF OF JUNE 27, 2000 AVISTAR COMMUNICATIONS CORPORATION H 66908 BK OPERATOR: JW NEW