Patent US2447512A successfully refreshed from Google Patents.
US2447512A
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Assignee: United Shoe Machinery Corp
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Filing: 1947-03-22
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Granted: 1948-08-24
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Expires: 1967-03-22
Abstract
No abstract record available.
Inventors
- 👤 James F Leahy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:27
CPC Classifications
B; B29; B29D; B29D35/00; B29D35/06; B29D35/061; A; A43; A43D; A43D81/00; B29C; B29C65/00; B29C65/48; B29C65/52; B29C65/54; B29C65/542; B29C66/00; B29C66/80; B29C66/82; B29C66/824; B29C66/8242; B29C66/83; B29C66/832; B29C66/8322; B29C66/50; B29C66/51; B29C66/53; B29C66/534; B29C66/5346; B29C66/61; B29L; B29L2031/00; B29L2031/48; B29L2031/50; B29L2031/502
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) | 1951-08-24 | 1952-02-23 | 1952-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-08-24 | 1956-02-23 | 1956-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-08-24 | 1960-02-23 | 1960-08-24 | $7700.00 | Window Closed / Lapsed |