diff --git a/winsup/cygwin/cygthread.h b/winsup/cygwin/cygthread.h
index f0b5f733e..f3b0bf00d 100644
--- a/winsup/cygwin/cygthread.h
+++ b/winsup/cygwin/cygthread.h
@@ -1,8 +1,5 @@
 /* cygthread.h
 
-   Copyright 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2010, 2011 Red
-   Hat, Inc.
-
 This software is a copyrighted work licensed under the terms of the
 Cygwin license.  Please consult the file "CYGWIN_LICENSE" for
 details. */
diff --git a/winsup/cygwin/devices.h b/winsup/cygwin/devices.h
index 8d2b3edce..5fb3396c0 100644
--- a/winsup/cygwin/devices.h
+++ b/winsup/cygwin/devices.h
@@ -1,8 +1,5 @@
 /* devices.h
 
-   Copyright 2002, 2003, 2004, 2005, 2006, 2007, 2009, 2010, 2011, 2012 Red
-   Hat, Inc.
-
 This file is part of Cygwin.
 
 This software is a copyrighted work licensed under the terms of the
diff --git a/winsup/cygwin/include/sys/param.h b/winsup/cygwin/include/sys/param.h
index ff0517627..63de726e6 100644
--- a/winsup/cygwin/include/sys/param.h
+++ b/winsup/cygwin/include/sys/param.h
@@ -1,8 +1,5 @@
 /* sys/param.h
 
-   Copyright 1996, 1997, 1998, 2002, 2003, 2005, 2007, 2009, 2011, 2012 Red
-   Hat, Inc.
-
    This software is a copyrighted work licensed under the terms of the
    Cygwin license.  Please consult the file "CYGWIN_LICENSE" for
    details. */
diff --git a/winsup/cygwin/include/sys/wait.h b/winsup/cygwin/include/sys/wait.h
index 19f599c1b..69e1b9d9b 100644
--- a/winsup/cygwin/include/sys/wait.h
+++ b/winsup/cygwin/include/sys/wait.h
@@ -1,8 +1,5 @@
 /* sys/wait.h
 
-   Copyright 1997, 1998, 2000, 2001, 2002, 2003, 2004, 2006, 2011, 2012 Red
-   Hat, Inc.
-
 This file is part of Cygwin.
 
 This software is a copyrighted work licensed under the terms of the
diff --git a/winsup/cygwin/pipe.cc b/winsup/cygwin/pipe.cc
index 5f4df131b..79b796631 100644
--- a/winsup/cygwin/pipe.cc
+++ b/winsup/cygwin/pipe.cc
@@ -1,8 +1,5 @@
 /* pipe.cc: pipe for Cygwin.
 
-   Copyright 1996, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007,
-   2008, 2009, 2010, 2011, 2012, 2013, 2015 Hat, Inc.
-
 This file is part of Cygwin.
 
 This software is a copyrighted work licensed under the terms of the