A helical loop racing track assembly patented by C.T. Montagna. The patent number is 3,411,783.
Technical drawings make some really cool wall art
A few days ago, I noticed a patent drawing for a double loop play set for sale for around $30 U.S. I thought it would be nice to have a few patent drawings to add another aspect to my diecast car collection.
But, I sure as hell wasn’t going to pay someone $30 for the drawing. Now, don’t get me wrong, the people selling these drawings have as much right as anybody to make a living. But, anyone can get a PDF copy of a patent for free from the United States Patent and Trademark Office. The reason people obtain and sell these drawing is that, with limited exceptions, patents aren’t copyrightable.
However, finding a particular drawing can require a little work. But, the USPTO has a public database that is searchable by patent number or by keyword. Fortunately, the people selling the drawings usually leave the patent number on the image. So, it you see a patent drawing being sold on the internet, there’s a pretty good chance the seller left the patent number on it. I suppose leaving the U.S Patent Office and patent number on the print gives it an air of authenticity.
I was curious to what other drawings I could find, so I compiled a list of the drawings I found. I’m pretty sure there are scores, if not hundreds or thousands of drawings I haven’t found. If you find a drawing not on my list, leave me a link in the comments and I’ll add it to the post.
Diecast Car Playset Patents:
- Looped Track System for Toy Wheeled Vehicles, Mattel, Inc., July 18, 1972.
- Continuous Racetrack Having Turnaround Portions, Tomy Kogyo Co., Jan. 14, 1975.
- Helical Loop Racing Track Assembly, The Lionel Corporation, Nov. 19, 1968.
- Toy vehicle playset with manually operable car feeder, Mattel Inc., Jan. 24, 2023.
- Toy vehicle playset with interactive features, Mattel, Inc., Dec. 27, 2022.
- Reconfigurable toy vehicle loop, Mattel, Inc., Nov. 22, 2022.
- Reconfigurable toy vehicle track set, Mattel, Inc., Aug. 30, 2022.
- Toy vehicle track loop, Mattel, Inc., Aug. 23, 2022.
- Transformable toy vehicle hauler, Mattel Inc., Nov. 15, 2022.
- Toy vehicle booster, Mattel, Inc., Nov. 8, 2022.
- Toy vehicle track system, Mattel, Inc., Oct. 18, 2022.
- Toy vehicle track set, Mattel, Inc., Sept. 20, 2022.
- Toy vehicle booster, Mattel., Inc., Aug. 30, 2022.
Toy Cars
- Toy Car, Shantou City Chenghai Jingwei Industrial Co. Ltd., Jan. 10, 2023.
- Toy Car, Shantou City Chenghai Jingwei Industrial Co. Ltd., Jan. 10, 2023.
- Toy Car, Shantou City Chenghai Jingwei Industrial Co. Ltd., Jan. 10, 2023.
- Toy Car, Shantou City Chenghai Jingwei Industrial Co. Ltd., Jan. 10, 2023.
- Dinosaur toy car, Ancui Zhang, Dec. 7, 2022.
- Toy Car, Yeping Ji, Dec. 20, 2022.
Boondock Bight 