BRIEF-WaMu sues JPMorgan for return of $4 bln deposits

April 28 (Reuters) - Washington Mutual Inc:

* Files lawsuit versus JPMorgan Chase & Co over $4 billion cash deposit

- court documents

* Says JPMorgan Chase & Co has refused to turn over access to wamu's

cash deposits - court documents

* Wamu says in lawsuit JPMorgan improperly claims it

purchased deposits as part of takeover, and has no basis to withold them

* Wamu says in lawsuit JPMorgan could earn as much as $200

million per year by retaining the deposits

((New York Equities Desk; tel: [phone]))

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