The famous "Manhattan" ("I'll take Manhattan ..." was covered by hundreds of artists and in the movie "Night and Day" with Mickey Rooney, who sang it. It was written (musically) by Richard Rogers and (lyrics) by Lorenz Hart.
It has been reported that those famous 5 notes of "Seventy Seven ..." for WABC cost up to $50,000 a year to the estate of Richard Rogers for many years for ABC to use them. WABC's entire jingle budget back in the early 60s was $45,000 for 60 tracks. Lorenz Hart got not a dime from helping create the now famous logo ... because he was the lyricist, not the music writer.
Jingle companies do copyright their packages ... especially where "new" logos are concerned. There was quite a stir in the Dallas jingle mills for years if anyone tried to emulate the WABC, WLS, WCFL or Drake logos because they were seen as "part of a package" ... and for years, until the musician's union (AFM) made changes in "bar lengths" (usually eight bars) that, at the time, constituted a copyrightable "jingle." Of course, today, few jingles are 8 bars in length ... and you can hear logo's "shared" among LA jingle houses, Dallas, Memphis and elsewhere.
Back in the day, Tanner, for example, was not allowed to produce jingles using the WABC logo because it was copyrighted by PAMS ... and Tanner was a non-union shop. So, until the company opened a "Dallas branch" called "Thunder Productions," you never heard Tanner use the WABC logo at all until the mid-70s. They did a fine package for WABC, using the PAMS singers, in fact, who were contracted as non-exclusive artists (singers now have exclusive AFTRA contracts with the likes of JAM and others, though a few still "freelance" their services to get as much work as possible.)
When "Thunder" was closed down ... the masters remained in Dallas and Tanner's jingle division (in which I worked) reverted back to Memphis and they didn't use the WABC logo again, to my memory. Note that the famous "I'll take Manhattan ..." logo had been changed by this point and changed.
When doing new packages, we always "tweaked" logos to not get into copyright problems on packages for WQXI, WSIX and others, but they were darn close to the originals. I can think of a few, in fact.
Here's an example of a Thunder Productions tracks in 1974. They were established in 1974 and gone by mid-75. By that time, ABC had stopped paying royalties on the famous "77" logo on many tracks, including these one ... and others ... that allowed, for a time, Tanner to "imitate" ... until they sold the asset and moved back to Memphis ... bringing PAMS' Marv Shaw and Chris Kershaw with them. The W-A-B-C logo stayed, however.
http://www.musicradio77.com/jingles/thundan.wav
http://www.musicradio77.com/jingles/THUN_HH.WAV
http://www.musicradio77.com/jingles/THUN_BM.WAV
Union rules made a big difference. On the famous PAMS Series 26 ("Let's Go America - All American") series in 1963 ... AFTRA forbid Dallas singers to do jingles for on-air in New York ... so, Bill Meeks had that series sung in the Big Apple. A huge cost that was later rectified when the Dallas singers became unionized under AFTRA. There were 30 tracks in that package that also featured three different stations in separate demos. WABC, KFWB and, I believe, WKLO.
It was legendary because it was the end of "long" jingles on WABC. The "Let's Go America - All American" series was meant to be patriotic, but also to identify corporate owner ... the American Broadcasting Company.