Inventor
Donald K. Fletchic
Inventor
Arlington Heights, IL, US
Overview
Patents· 9 as inventor
Public. Assignee & technology derived from the patent record. Each patent links to its LexDana page.
G11Bprimary
G11BInformation storage based on relative movement between record carrier and transducer50%
A63HToys, e.g. tops, dolls, hoops or building blocks20%
A45CPurses10%
A63FCard, board, or roulette games10%
B62MRider propulsion of wheeled vehicles or sledges10%
PatentTitleYear
4,198,778'Amusement device'19804,166,621'Programmable record changer'19794,119,844'Phonograph cartridge and sensor assembly'19784,109,114'Programmable phonograph device'19784,101,619'Method of making a doll head'19784,093,832'Programmable record changer'19784,093,260'Velocipede steering and driving arrangement'19784,082,292'Tone arm lift mechanism'19783,990,175'Doll head for excreting liquid therethrough, and method of making same'1976Career & activity timeline
Assembled from patent assignee/location history and declaration credentials.
1976–1980Patents assigned to MARVIN GLASS & ASSOCIATES (9)· patent assignee history
1976–1978Based in Cicero, IL, US· patent location history
1978–1979Based in Arlington Heights, IL, US· patent location history
1980Based in Rolling Meadows, IL, US· patent location history
Inventor activity
Assignee and location history derived from the patent record.
Assignees
| Assignee | Patents | Span |
|---|---|---|
| MARVIN GLASS & ASSOCIATES | 9 | 1976–1980 |
Locations
| Location | Patents | Span |
|---|---|---|
| Arlington Heights, Illinois, US | 6 | 1978–1979 |
| Cicero, Illinois, US | 2 | 1976–1978 |
| Rolling Meadows, Illinois, US | 1 | 1980 |