What slip of paper? It is not clear what you are talking about. In general the company can fire you, lay you off or put you on leave for its own reasons. I don't know what a slip of papaer has to do with it.
Your "paper slip" reference is confusing. You may want to provide more information and try your question again.
Disclaimer: Please note that this answer does not constitute legal advice, and should not be relied on, since each state has different laws, each situation is fact specific, and it is impossible to evaluate a legal problem without a comprehensive consultation and review of all the facts and documents at issue. This answer does not create an attorney-client relationship.