(Reuters) - National Hockey League owners and players returned to the bargaining table on Wednesday in a late push to salvage a scaled down season but the two sides appear no closer to reaching a deal.

After negotiations on a new collective bargaining agreement (CBA) collapsed last Thursday amid angry rhetoric, talks resumed at a secret location with NHL Commissioner Gary Bettman and players union chief Donald Fehr, joined at the table by U.S. federal mediators, according to local media reports.

It marked the second time mediators have been brought in to try to jump start stalled negotiations that have now dragged on for nearly three months.

Owners locked out players on September 15 when the current CBA expired, plunging the league into its fourth work stoppage in 20 years.

Few details of the meeting have emerged other than there were no face-to-face negotiations, with mediators meeting both sides separately.

No new proposals were exchanged and there was no word on whether talks will continue.

The two parties returned to bargaining as pressure mounts to reach a deal or risk having the entire campaign wiped out like the 2004-05 season.

Bettman has said he cannot see the league playing less than a 48-game regular season schedule, and with 526 games, or more than 40 percent, of the season already canceled, time is quickly running out.

The two sides appear to have inched closer on the main sticking point of how to divide $3.3 billion in ice hockey related revenue.

The league is seeking an immediate 50-50 split while players, who will see their share chopped from 57 percent, want the cuts brought in gradually with a "make whole" provision in place to cover money that would be lost on current contracts.

Several other contentious items remain on the table, including the length of a new CBA and contract limits to drug testing and continued participation in the Winter Olympics.

While players and owners talk the losses continue to mount on both sides.

The NHL has said the lockout is costing it between $18-$20 million a day while players, with gamescanceled up to December 30, will miss six pay cheques.

(Reporting by Steve Keating in Toronto; Editing by Peter Rutherford) 

This how far the NHL has come so far in their negotiations. It seems like they get together three of four times a month, but nothing is solved. Follow step by step development of the talks:

First Two Weeks Cancelled

50-50 Split in Review Surprises Players

Union Spars Over Latest Proposals

135 Games Cancelled

Commissioner Bettman Losing Hope for Season

Marathon of Talks Ensue to Save Season

Two Offers Made in Secret Labor Agreement

Negotiations are Terminated Due to Contracts

More Talking... and Negotiating.... 

No Progress Made

Games Cancelled Through Dec. 14

U.S. Federal Mediators Join Talks