No petition shall be dismissed for want of prosecution or for failure to formally adjourn the cause, until after notice shall be served by the respondent on the petitioner or his attorney that unless the cause is moved for hearing within one month from the date of the service thereof, the claim will be considered abandoned and the petition dismissed subject, however, to the right to have the petition reinstated for good cause shown, upon application made to the deputy commissioner before whom the matter was heard or to the Commissioner of Labor within one year thereafter. No claim heretofore made shall be considered abandoned because the petition was dismissed under this section, if such petition has been reinstated for good cause shown, and such petition shall be deemed to have been dismissed without prejudice to further proceedings upon said petition, and further proceedings thereon shall be as effective as though said petition had not been dismissed.

Amended by L.1947, c. 267, p. 968, s. 1.