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|Oscillator type||Muttering moat|
|Number of cells||18|
|Bounding box||9 × 8|
|Discovered by||Rich Schroeppel|
|Year of discovery||1970|
The name cuphook has long been associated with the trans isomer (more accurately, trans-block on cuphook), as shown in the infobox. The cis isomer of this oscillator (cis-block on cuphook) first appeared naturally on March 15, 2015, in a soup submitted to Catagolue by Adam P. Goucher.