Patent US3709973A successfully refreshed from Google Patents.
US3709973A
Expired / Lapsed
US
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Manufacture of footwear and/or components thereof by injection molding of synthetic resinous material or other molding materials
Assignee: Bata Shoe Co Inc
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Filing: 1970-10-02
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Granted: 1973-01-09
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Expires: 1990-10-02
Abstract
Abstract The shaping of an insole and the production of an article of footwear in which an insole blank is positioned on a last member and pressed thereagainst by a first closure member for conforming the insole blank to the shape of the last member. A first molding material is injected into a first molding cavity provided between the insole and the first closure member and an upper is lasted onto the insole carrying last. A second molding material is injected into a second molding cavity provided by a second closure member positioned adjacent the last member.
Inventors
- 👤 F Maltby
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 04:45
CPC Classifications
B; B29; B29D; B29D35/00; B29D35/0009; B29D35/0018; B29D35/0027; B29D35/06; B29D35/08; B29D35/081; B29D35/084; B29K; B29K2021/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-01-09 | 1976-07-10 | 1977-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-01-09 | 1980-07-10 | 1981-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-01-09 | 1984-07-10 | 1985-01-09 | $7700.00 | Window Closed / Lapsed |