* More than a year after prominent Georgetown Rabbi Philip L. Rabinowitz was found stabbed to death in his home, two D.C. homicide detectives continue to work full time trying to find his slayer, but police say they do not expect any arrests soon.

"We've looked at several suspects and we're still looking at some people," said Sgt. J.T. McCann of the homicide squad. "We have some real good clues, but I can't comment on them."

Rabinowitz, the 63-year-old leader of the orthodox Kesher Israel Congregation in Georgetown, was found dead of stab wounds in the study of his home by three members of his congregation on Feb. 28, 1984, after they had been unable to reach him by telephone.

The rabbi had also received a severe blow to the head. But there was no sign of a struggle in his house at 1134 25th St. NW, and no indication that burglary or robbery might have been a motive.

McCann said investigators until now have been stymied because there were no witnesses. Detectives have sent queries as far away as California, he said, and police continue to interview people in connection with the case.

Rabinowitz's slaying is one of 38 homicides still open on the D.C. police books. Homicide officials recently assigned new detectives to all of them, McCann said, in an effort to bring a fresh perspective to the investigations.

A reward of $10,000 has been posted for information leading to the arrest and conviction of Rabinowitz's assailant.