Items such as these, from a Malden iParty store, could find a permanent home in Porter Square if the company’s Halloween store does well. (Photo: Chris Devers)

The iParty Halloween store open in the Porter Square Galleria may become permanent, a manager said Saturday — significant because it fills space left empty by one of the three large retailers who have left in the past year.

The store employs some 25 people and could hire another 20 if good sales convince the parent company to keep the space.

The iParty store opening came just as Great American Furniture Services, a liquidator, closed the doors forever on what had been a Jennifer Convertibles sales site. The furniture seller filed for Chapter 11 bankruptcy protection July 18.

A two-story Pizzeria Uno closed in March as part of the Chapter 11 bankruptcy Uno Restaurant Holdings Corp. filed for in January.

The second-story Blockbuster video store whose space has been filled by iParty closed in August as that company struggled with a bad economy and changing tastes in media consumption. Blockbuster filed for bankruptcy this week, threatening stores in Central Square and Fresh Pond.

The Porter Square Galleria is managed by KS Partners LLC.