I've been using the term "north road" generically for upright, swept bars, such as:

VO Tourist Handlebar 22.2 dia

Origin8 Citi Classic 25.4mm x 58cm Silver Cruiser Bar - Walmart.com

Don't be put off by WalMart -- these are high quality bars. In addition, a similar steel bar from an old Schwinn is now on my winter bike.

One of my bikes is a 1983 Trek 311, which started its life with downtube shifters and drop bars, not radically different from your c'dale. It now has the Origin8 bars on it. I have a problem with my neck that makes it very uncomfortable to reach way out... even the hoods on drop bars are uncomfortable for me.

Naturally the conversion to flat or swept bars requires new brake levers and possibly new cabling if the existing cables aren't long enough.