Difference between revisions of "Swiss patent classifications"
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(now we have a patent in CH 12) |
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| + | Switzerland's patent classifications in the early aero period are laid out in books in USPTO's [[STIC library]]. | ||
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| + | Categories from about 1 to 129 are grouped into letter supercategories A-Q. The letter supercategories are not often used. | ||
| + | At some point in history one-letter suffixes are added to the number categories to create subcategories. | ||
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| + | Dates of the Swiss classifications are not clear yet. | ||
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| + | The book we have from about 1920 shows a list of the classes in German and in French. | ||
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{{Standard techtype reports}} | {{Standard techtype reports}} | ||
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{{Techtype | {{Techtype | ||
|Enclosing categories=Patent category systems | |Enclosing categories=Patent category systems | ||
Revision as of 17:37, 17 December 2019
Switzerland's patent classifications in the early aero period are laid out in books in USPTO's STIC library.
Categories from about 1 to 129 are grouped into letter supercategories A-Q. The letter supercategories are not often used. At some point in history one-letter suffixes are added to the number categories to create subcategories.
Dates of the Swiss classifications are not clear yet.
The book we have from about 1920 shows a list of the classes in German and in French.
This wiki has 0 patents in category "Swiss patent classifications".
| Enclosing categories | Patent category systems |
|---|---|
| Subcategories | CH 12, CH 54f, CH 95, CH 114d, CH 115, CH 129, CH 235 |
| Keywords | |
| Start year | |
| End year |
