US Patent: 306,594
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| Photographic film
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Patentee:
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| George Eastman (exact or similar names) - Rochester, Monroe County, NY |
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Patent Dates:
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| Applied: |
Mar. 07, 1884 |
| Granted: |
Oct. 14, 1884 |
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Joel Havens
This Day in History—Photographic Film Patented
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Description: |
| This patent is the genesis of Kodak film. The innovation is to use coated paper and rollers rather than glass plates. The inexpensive, lightweight and easy-to-use Kodak box camera was introduced in 1888, which is also when the KODAK name was introduced.
Abstract:
My invention relates to an improvement in photographic films having for their object the production for the market of sensitized films, which are capable of being used in making positives and negatives in place of the sheets of glass coated with emulsion, now known in the trade as "dry-plates;" and to this end my invention consists in the new article of manufacture formed by my improved sensitized films, and in the process or mode of manufacture of my said films.
Claim:
As a new article of manufacture, a sensitive photographic film consisting of a coating of insoluble sensitized gelatine, a paper or equivalent support, and an interposed coating of soluble gelatine. |
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