Inventor
GREENBERG SHELDON
6 patents
⚠️ This page may combine multiple inventors who share the name “GREENBERG SHELDON”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SHELCORE INC
5 patentsUS4223471ASep 23, 1980
Aquarium crib toy
SHELCORE INC41 citations90
US4335538AJun 22, 1982
Inflatable overhead crib gym toy
SHELCORE INC26 citations79
USD268274SMar 15, 1983
Multiple element pop-up toy
SHELCORE INC11 citations71
US4353701AOct 12, 1982
Educational, action-type, amusement center toy
SHELCORE INC20 citations71
USD268275SMar 15, 1983
Inflatable crib gym toy
SHELCORE INC4 citations60