U.S. stocks slipped Thursday, following a rise in weekly jobless claims and investors continued to parse upbeat earnings from Facebook (FB) - Get Report . Facebook's second quarter earnings of $0.97 a share, beat estimates of $0.82, while sales of $6.44 billion topped the $6.02 billion analysts had expected. Plus, weekly jobless claims rose by 14,000 last week, reaching 266,000, while analysts had expected 260,000. Ford (F) - Get Report shares slipped after reporting earnings per share of $0.52, missing estimates of $0.60. Revenue of $39.49 billion, a 6 percent increase year-over-year, topped estimates of $36.2 billion. Boeing (BA) - Get Report said it could end production of its iconic 747 jumbo jet amid worries about sluggish demand. The plane was unveiled back in 1970 and 1,500 have been built. TheStreet's Scott Gamm reports from Wall Street.