diff --git a/src/ol/format/filter/and.js b/src/ol/format/filter/and.js
index aa173c2aa9..0a23faca86 100644
--- a/src/ol/format/filter/and.js
+++ b/src/ol/format/filter/and.js
@@ -7,7 +7,10 @@ goog.require('ol.format.filter.LogicalNary');
  * @classdesc
  * Represents a logical `<And>` operator between two or more filter conditions.
  *
+ * deprecated: This class will no longer be exported starting from the next major version.
+ *
  * @constructor
+ * @abstract
  * @param {...ol.format.filter.Filter} conditions Conditions.
  * @extends {ol.format.filter.LogicalNary}
  * @api
diff --git a/src/ol/format/filter/comparison.js b/src/ol/format/filter/comparison.js
index dc9a069a19..e3724036c8 100644
--- a/src/ol/format/filter/comparison.js
+++ b/src/ol/format/filter/comparison.js
@@ -9,7 +9,10 @@ goog.require('ol.format.filter.Filter');
  * Abstract class; normally only used for creating subclasses and not instantiated in apps.
  * Base class for WFS GetFeature property comparison filters.
  *
+ * deprecated: This class will no longer be exported starting from the next major version.
+ *
  * @constructor
+ * @abstract
  * @param {!string} tagName The XML tag name for this filter.
  * @param {!string} propertyName Name of the context property to compare.
  * @extends {ol.format.filter.Filter}
diff --git a/src/ol/format/filter/comparisonbinary.js b/src/ol/format/filter/comparisonbinary.js
index 45a3d815a9..3ab5c67992 100644
--- a/src/ol/format/filter/comparisonbinary.js
+++ b/src/ol/format/filter/comparisonbinary.js
@@ -9,7 +9,10 @@ goog.require('ol.format.filter.Comparison');
  * Abstract class; normally only used for creating subclasses and not instantiated in apps.
  * Base class for WFS GetFeature property binary comparison filters.
  *
+ * deprecated: This class will no longer be exported starting from the next major version.
+ *
  * @constructor
+ * @abstract
  * @param {!string} tagName The XML tag name for this filter.
  * @param {!string} propertyName Name of the context property to compare.
  * @param {!(string|number)} expression The value to compare.
diff --git a/src/ol/format/filter/filter.js b/src/ol/format/filter/filter.js
index 48c9f0f3b8..7f21c3f0d4 100644
--- a/src/ol/format/filter/filter.js
+++ b/src/ol/format/filter/filter.js
@@ -6,7 +6,10 @@ goog.provide('ol.format.filter.Filter');
  * Abstract class; normally only used for creating subclasses and not instantiated in apps.
  * Base class for WFS GetFeature filters.
  *
+ * deprecated: This class will no longer be exported starting from the next major version.
+ *
  * @constructor
+ * @abstract
  * @param {!string} tagName The XML tag name for this filter.
  * @struct
  * @api
diff --git a/src/ol/format/filter/logicalnary.js b/src/ol/format/filter/logicalnary.js
index 530c5e4d4f..748bb8f6af 100644
--- a/src/ol/format/filter/logicalnary.js
+++ b/src/ol/format/filter/logicalnary.js
@@ -11,6 +11,7 @@ goog.require('ol.format.filter.Filter');
  * Base class for WFS GetFeature n-ary logical filters.
  *
  * @constructor
+ * @abstract
  * @param {!string} tagName The XML tag name for this filter.
  * @param {...ol.format.filter.Filter} conditions Conditions.
  * @extends {ol.format.filter.Filter}
diff --git a/src/ol/format/filter/spatial.js b/src/ol/format/filter/spatial.js
index e00fd95423..b86ebc0e47 100644
--- a/src/ol/format/filter/spatial.js
+++ b/src/ol/format/filter/spatial.js
@@ -6,10 +6,14 @@ goog.require('ol.format.filter.Filter');
 
 /**
  * @classdesc
+ * Abstract class; normally only used for creating subclasses and not instantiated in apps.
  * Represents a spatial operator to test whether a geometry-valued property
  * relates to a given geometry.
  *
+ * deprecated: This class will no longer be exported starting from the next major version.
+ *
  * @constructor
+ * @abstract
  * @param {!string} tagName The XML tag name for this filter.
  * @param {!string} geometryName Geometry name to use.
  * @param {!ol.geom.Geometry} geometry Geometry.