15. no rights or liabilities as shareholder. nothing contained in this warrant shall be construed as conferring upon the holder hereof any rights as a stockholder of the company or as imposing any obligation on the holder to purchase any securities or as imposing any liabilities on the holder as a stockholder of the company, whether such obligation or liabilities are asserted by the company or by creditors of the company.
16. notices. all notices and other communications (and deliveries) provided for or permitted hereunder shall be made in writing by hand delivery, telecopier, any courier guaranteeing overnight delivery or first class registered or certified mail, return receipt requested, postage prepaid, addressed (a) if to the company, to the attention of its president at its principal office located at __________________ or such other address as may hereafter be designated in writing by the company to the holder in accordance with the provisions of this section, or (b) if to the holder, at its address as it appears in the warrant register.
all such notices and communications (and deliveries) shall be deemed to have been duly given: at the time delivered by hand, if personally delivered; when receipt is acknowledged, if telecopied; on the next business day, if timely delivered to a courier guaranteeing overnight delivery; and five days after being deposited in the mail, if sent first class or certified mail, return receipt requested, postage prepaid; provided, that the exercise of any warrant shall be effective in the manner provided in section 2.
17. amendments. this warrant and any term hereof may not be amended, modified, supplemented or terminated, and waivers or consents to departures from the provisions hereof may not be given, except by written instrument duly executed by the party against which enforcement of such amendment, modification, supplement, termination or consent to departure is sought.
18. descriptive headings, etc. the headings in this warrant are for convenience of reference only and shall not limit or otherwise affect the meaning of terms contained herein. unless the context of this warrant otherwise requires: (1) words of any gender shall be deemed to include each other gender; (2) words using the singular or plural number shall also include the plural or singular number, respectively; (3) the words 'hereof', 'herein' and 'hereunder' and words of similar import when used in this warrant shall refer to this warrant as a whole and not to any particular provision of this warrant, and section and paragraph references are to the sections and paragraphs of this warrant unless otherwise specified; (4) the word 'including' and words of similar import when used in this warrant shall mean 'including, without limitation,' unless otherwise specified; (5) 'or' is not exclusive; and (6) provisions apply to successive events and transactions.