diff --git a/src/dopt_basics/result_pattern.py b/src/dopt_basics/result_pattern.py
index 2c52da1..1be7f25 100644
--- a/src/dopt_basics/result_pattern.py
+++ b/src/dopt_basics/result_pattern.py
@@ -15,22 +15,6 @@ class WAccessResultDespiteError(Exception):
     there was an error in the underlying procedure"""
 
 
-# ** Exceptions for unwrap of error value
-class UDataProcessingError(Exception):
-    """unwrap exception: all data related errors (e.g. wrong format, non-sufficient quality)"""
-
-
-class UInternalError(Exception):
-    """unwrap exception: all internal errors; internal, if error is not caused by (external)
-    data related issues"""
-
-
-class UApiError(Exception):
-    """unwrap exception: all errors occurred on the server side of Delta Barth's API
-    default case: should not be raised, as this kind of errors should be handled by
-    Delta Barth themselves"""
-
-
 @dc.dataclass(kw_only=True, slots=True)
 class Status:
     code: int