H4 to H1B Visa conversion

Got H1B petition approved in 2013 Dec by a Company in India but didnt undergo Visa Stamping lack of positions in project…I resigned came US with H4 in April , 2014 and now H1B petition has been revoked from the company as I resigned. Can I use the existing petition number for my H4 to H1B status conversion (cap - exempt quota) or should i wait for next year to initiate new H1B? I dont have original approved petition documents but do have mail confirmation documents with me which includes the receipt number, company and project in it? Please help me answering this question. Thank you in advance.

I have a similar case. My wife has started working in US on H1 Visa from Oct 2014. I am currently in US on H4 Visa and looking for a job.
What are the possibilities for h4 to h1 conversion. I have over 8 yrs IT experience in TIBCO Middleware domain.