Technically they were already "notebooks" in 1995. Everything today counts as a Notebook I think if you consider the original definitions. Something like the "Macintosh Portable" would have been a "laptop" but not a "notebook" by the old school definitions. Modern definitions basically say a laptop is a big huge notebook with fans and optical drive whereas a "notebook" is basically an Ultrabook.
In the 80s laptop and luggable were different things. The entire computer didn't fit into the screen + keyboard portions of a clamshell.
When I went to college (for CS) in 1995 it was rare to have a personal laptop, slightly less rare to have a desktop PC. By 1997 all the incoming freshman at the school had IBM Thinkpads.
[1] https://www.ebay.com/itm/154861345205?hash=item240e7499b5:g:...
(not the seller, just the best example a short search could find)
https://en.wikipedia.org/wiki/Compaq_Portable
http://www.markrichards.com/Core_MemoryCollection/coreview/c...
[1] https://vintage-laptops.com/en/hewlett-packard-hp-110-plus/