T?hat  a  patent  may  be  amended  and  reissued  as  often  ai^  erroriS
are  discovefedj— ^se'fe  Moi-se  v.  Bain,  9  West.  L.  J.  106.
135.  Surrender ;  Hpw  Mddej  and  its  Effect.
The  surrender  of  &  patfent  extinguishes  it ;  Cancels  it ;  and  no
right  can  afterward  be  asserted  iipon  it.  Suits  p'endirig  for  aS
infringemefiit  of  a-  patent  fall  with  its  surrender,  because  the  foun-
dattion  upon  which  they  were  commenced  no  longer  exists  (Moffitifc
V.  Girt,  1  J3ldc^,  273  ;  Peek  v.  Collins,  103  U.  S.  660);  bmt  a  persofi
who  under  slh  honest  niisapp'r&hension  sUrrfendets  a  valid  patent^
and  takes  oiit  a  rei^ne  which  proves  to  be  void,  is  entitled  to  a
reissue  of  the  first  patent  in  thfe  identical  language  originally  used;
Giant  Powder  Co.  v.  Safety  Nitro  Powder  Co.,  19  Md.  Rep'r,  609.
That  when  a  reissue  is  adjudged  invalid,  the  surrender  whicfi
peceded  it  \frill  also  be  ihvalidated  ;  and  the  original  patent  will  b*
treated  as  remaining  in  fOrbe, — see  Wo6dworth  v.  Hall,  1  Wood&.
&  M.  248  ;  6  Pa.  i.  j;  178  ;  Woodwdrtb  i>.  Hall,  1  Woadb.  &  M.
389  ;  Woodworth  v.  Edwards,  4  Woodb.  cfc  M.  120.  i


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182  UNITED    STATES   LAWS.
136.  Loss  of  the  Eight,  by  Delay.
The  right  to  have  corrections  made  by  reissue  may  be  aban-
doned and  lost  by  unreasonable  delay.  Miller  w.  Brass  Co.,  104
IT.  S.  350  ;  aff'g  14  Blatchf.  282  ;  12  Pat.  Off.  Gaz.  667  ;  3  Bann.
&  A.  Pat.  Cas.  20  ;  Turrell  v.  Bradford,  23  Pat.  Off.  Gaz.  1623  ;
15  Fed.  Bep'r,  808  ;  Wollensaki).  Reiher,  115  IT.  S.  96.
