This is something on which an Oregon attorney could advise best, but you await a response for a week. I'm sorry for your ordeal and the serious injuries you must have suffered to necessitate skin grafting. Unfortunately, it might be difficult to pursue legal remedies at this point in time. You describe injuries, presumably burns, that could have stemmed from negligence or a defective product. A negligence action would have been based on the defendant's breach of a duty of care. A product-based action would have been based on the pajamas being either defectively manufactured, designed, or failing to carry adequate warning. In virtually all jurisdictions, the statutes of limitations for these types of actions are only several years for either type of action. Some jurisdictions toll the statute of limitations for incapacity or minors (meaning they allow the clock to stop running until the person's disability no longer exists or the person reaches 18, or whatever the age of majority is). But regardless, going back 46 some odd years, that could be irrelevant anyway. At this point, you should contact Oregon attorneys who handle injury/product-based lawsuits to ask if you still have any legal recourses available.
Tim Akpinar