174.  A  forfeited  application  is  one  upon  which  a  pat-
ent has  been  withheld  for  failure  to  pay  the  final  fee
within  the  prescribed  time.     (See  Rule  167.)

175.  When  the  patent  has  been  withheld  by  reason  of
nonpayment  of  the  final  fee,  any  person,  whether  in-
ventor or  assignee,  who  has  an  interest  in  the  invention
for  which  the  patent  was  ordered  to  issue  may  file  a
renewal  of  the  application  for  the  same  invention ;  but
any  renewal  application  must  be  made  within  two  years
after  the  allowance  of  the  original  application.  Upon
the  hearing  of  the  new  application  abandonment  will  be
considered  as  a  question  of  fact.
176.  In  a  renewal  the  oath,  petition,  specification,
drawing,  and  model  of  the  original  application  may  be
used ;  but  a  new  fee  will  be  required.  The  renewal  ap-
plication will  not  be  regarded  for  all  purposes  as  a  con-
tinuation of  the  original  one,  but  must  bear  date  from
the  time  of  renewal  and  be  subject  to  examination  like
an  original  application.
'    177.  Forfeited  and  abandoned  applications  will  not  be
cited  as  references.
178.  Notice  of  the  filing  of  subsequent  applications  will
not  be  given  to  applicants  while  their  cases  remain  for-
feited.
179.  Copies  of  the  files  of  forfeited  and  abandoned  ap-
plications may  be  furnished  when  ordered  by  the  Com-
missioner. The  requests  for  such  copies  must  be  pre-
sented in  the  form  of  a  petition  properly  verified  as  to
all  matters  not  appearing  of  record  in  the  Patent  Office.
(See  Form  35.)

231


EXTENSIONS.
180.  Patents  can  not  be  extended  except  by  act  of
Congress.
DISCLAIMERS.
