File:Point-contact transistor patent US2524035.pdf
Point-contact_transistor_patent_US2524035.pdf (0 × 0 pixels, file size: 1.97 MB, MIME type: application/pdf)
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patent covering a component of electronics
Summary
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English: United States patent 2,524,035, describing the point-contact transistor. The world's first working transistor, it sparked such a transistor revolution that, by 1997, annual sales of electronics exceeded $1 trillion (Riordan 1997). |
| Date | |
| Source | https://patents.google.com/patent/US2524035A |
| Author | John Bardeen, Walter H. Brattain; Bell Telephone Laboratories, Incorporated |
Licensing
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The text and illustrations of US patents published before March 1, 1989 are in the public domain unless the patent text contains a specific notice that portions are copyrighted. See 37 CFR 1.71(d), 37 CFR 1.84(s)
The original patent contains no such notice, so its contents are in the public domain. Note: This only applies to images published before March 1, 1989. Patents published after that date are most likely copyrighted, unless in the public domain for another reason, such as {{PD-ineligible}}. |
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| current | 23:27, 23 August 2025 | 0 × 0 (1.97 MB) | FreeMediaKid! (talk | contribs) | Uploaded a work by John Bardeen, Walter H. Brattain; Bell Telephone Laboratories, Incorporated from https://patents.google.com/patent/US2524035A with UploadWizard |
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