Just under four months ago Ecclestone raised doubts as to whether the race in New Jersey, with the Manhattan skyline serving as a backdrop, would take place.
Ecclestone stated then the organisers were late with payments and were attempting to resolve issues internally regarding funds.
A further complication arose in August when Tom Cotter, serving as president of the race organisers, resigned from a post he had only occupied for a few months.
Last week, with the release of the 2013 provisional calendar, the GP of America was handed a date of June 16, a week on from the event in Canada, but asterisked as it remains subject to confirmation.
With the calendar due to be finalised at a meeting of the World Motor Sport Council on Friday, at this stage the race is poised to be axed.
Ecclestone said: "The organisers have not complied with the terms and conditions of the contract, which is now gone anyway. They don't have a contract."
The door is, however, still ajar for promoter Leo Hindery Jr ahead of the WMSC meeting, but the clock is ticking.
Speaking to The Guardian, Ecclestone added: "We are pretty close to the final deadline. We have a world council meeting coming up.
"I think if somebody got behind them it could happen in 2013 because they have come a long way with the circuit."