Patents Acquired from 1900 to 1924
- Patents Acquired from 1850 to 1874
- Patents Acquired from 1875 to 1899
- Patents Acquired from 1900 to 1924
- Patents Acquired from 1925 to 1949
- Patents Acquired from 1950 to 1974
- Patents Acquired from 1975 to Present
| Application | Inventor(s) | Title; Invention Claimed; Concordance |
Letters Patent | ||
| File Date | Number | Grant Date | Number | ||
| Jun 10, 1902 |
111,013 |
Henry Ziegler |
"Upright Piano"; plate for upright piano having
capo tasto bar formed integrally therewith |
Feb 03, 1903 |
719,977 |
| Jan 11, 1907 | 351,777 | Frederick Steinway | "Case for Upright Pianos"; upright piano case with swinging panel | May 28, 1907 | 855,143 |
| Jul 24, 1906 | 327,517 | Henry Ziegler | "String-Frame for Upright Pianos"; plate for upright pianos having brace ribs, inverted scale ribs and transverse braces | Feb 11, 1908 | 878,926 |
| Oct 31, 1910 | 589,948 | Theodore E. Steinway | "Lid for Upright Pianos"; sliding keylid for upright pianos | Jul 18, 1911 | 998,422 |
| Jun 10, 1916 | 102,831 | Theodore E. Steinway | "Sostenuto Device for Pianos"; sostenuto pedal for grand piano | Jan 30, 1917 | 1,214,237 |
| Mar 03, 1922 | 540,722 | Paul H. Bilhuber | "Trackerboard for Player Pianos and Organs" | Jun 19, 1923 | 1,459,355 |