SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 12b-25 Commission File Number 33-86242 NOTIFICATION OF LATE FILING |_| Form 10-K |_| Form 11-K |_| Form 20-F |X| Form 10-Q |_| Form N-SAR For Period Ended: September 30, 2000 |_| Transition Report on Form 10-K |_| Transition Report on Form 10-Q |_| Transition Report on Form 20-F |_| Transition Report on Form N-SAR For the Transition Period Ended: ___________________________________________ Nothing in this form shall be construed to imply that the Commission has verified any information contained herein. If the notification relates to a portion of the filing checked above, identify the item(s) to which the notification relates: ________________________________________________________________________________ ________________________________________________________________________________ PART I REGISTRANT INFORMATION Full name of registrant ProtoSource Corporation Former name if applicable Address of principal executive office 2300 Tulare Street, Suite 210 City, state and zip code Fresno, California 93721 PART II RULE 12b-25 (b) AND (c) If the subject report could not be filed without unreasonable effort or expense and the registrant seeks relief pursuant to Rule 12b-25 (b), the following should be completed. (Check box if appropriate.) (a) The reasons described in reasonable detail in Part III of this form could not be eliminated without unreasonable effort or expense; (b) The subject annual report, semi-annual report, transition report on Form 10-K, 20-F, 11-K or Form 10-Q, or portion thereof will be filed on or before the 15th calendar day following the prescribed due date; |X| or the subject quarterly report or transition report on Form 10-Q, or portion thereof will be filed on or before the fifth calendar day following the prescribed due date; and (c) The accountant's statement or other exhibit required by Rule 12b-25(c) has been attached if applicable. PART III NARRATIVE State below in reasonable detail the reasons why Form 10-K, 11-K, 20-F, 10-Q, N-SAR or the transition report portion thereof could not be filed within the prescribed time period. The registrant is in the process of preparing and reviewing the financial information of the Company on a consolidated basis. The process of compiling and disseminating the information required to be included in the Form 10-Q for the relevant fiscal quarter, as well as the completion of the required review of the Company's financial information on a consolidated basis, could not be completed without incurring undue hardship and expense. The registrant undertakes the responsibility to file such annual report no later than five days after its original date. PART IV OTHER INFORMATION (1) Name and telephone number of person to contact in regard to this notification William Conis (559) 486-8600 (Name) (Area Code) (Telephone Number) (2) Have all other periodic reports required under Section 13 or 15(d) of the Securities Exchange Act of 1934 or Section 30 of the Investment Company Act of 1940 during the preceding 12 months or for such shorter period that the registrant was required to file such report(s) been filed? If the answer is no, identify report(s). |X| Yes |_| No (3) Is it anticipated that any significant change in results of operations from the corresponding period for the last fiscal year will be reflected by the earnings statements to be included in the subject report or portion thereof? |X| Yes |_| No If so: attach an explanation of the anticipated change, both narratively and quantitatively, and, if appropriate, state the reasons why a reasonable estimate of the results cannot be made. We anticipate disclosing an impairment in the valuation of Infosis Corp. of over $500,000. See above for a discussion on why ProtoSource could not file its Form 10-QSB in the prescribed time. ProtoSource Corporation ----------------------- Name of Registrant as Specified in Charter. Has caused this notification to be signed on its behalf by the undersigned thereunto duly authorized. Date: November 15, 2000 By: /s/ William Conis --------------------- William Conis, President