Are an integral component of screenplay applications.
Now, if, TimeLinesInc and fb and others want to drag it into the software realm, they'd better prepare to pay for exit strategies or profit increasing to screenplay application developers, as well as Time Magazine, and others.
A timeline is as basic as a bar chart, or a pie chart, a line chart, or a series of flags, notes, and connecting lines. NO company should be able to trademark the generic term to the exclusion of others including it in their own products. I am not favoring fb, nor denying them the use, but if their usage is too close to and trampling on the look and feel of TimelinesInc or any other app, they should be curtailed. However, to critique my own position, at some point, as more people use "timelines" by name or by visual representation, there are only so many ways it can be done without obscuring the very information being presented. Glowing orbs, slide in/out, fade in/out, and other materialization/dematerialization effects are only limited by imagination and ability of the authors/designers and the app makers.
I wonder what the Judge will say...