Patent US2688760A successfully refreshed from Google Patents.
US2688760A
Expired / Lapsed
US
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Method of making foot supporting devices
Assignee: Individual
•
Filing: 1952-11-28
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Granted: 1954-09-14
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Expires: 1972-11-28
Abstract
No abstract record available.
Inventors
- 👤 Forte Gabriele
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 16:14
CPC Classifications
A; A43; A43B; A43B7/00; A43B7/14; A43B7/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1140879A
Cited
US1095849A
Cited
CH73510A
Cited
US1501765A
Cited
DE471562C
Cited
FR805862A
Cited
US2289823A
Cited
US2417852A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-09-13 | 1958-03-15 | 1958-09-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-09-13 | 1962-03-15 | 1962-09-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-09-13 | 1966-03-15 | 1966-09-14 | $7700.00 | Window Closed / Lapsed |