US2605475A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Prosthetic device
Assignee: Wingfoot Corp
•
Filing: 1947-05-06
•
Granted: 1952-08-05
•
Expires: 1967-05-06
Abstract
No abstract record available.
Inventors
- 👤 Edwin M Burger
- 👤 Robert E De-Puy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:56
CPC Classifications
A; A61; A61F; A61F2/00; A61F2/50; A61F2/60; A61F2/66; A61F2/6607; A61F2/76; A61F2002/5007; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32541; Y10T403/32606; Y10T403/32951; Y10T403/32959
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1224368A
Cited
US1294632A
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DE358818C
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US1911440A
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US2019052A
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GB518258A
Cited
US2252206A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-08-05 | 1956-02-04 | 1956-08-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-05 | 1960-02-04 | 1960-08-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-05 | 1964-02-04 | 1964-08-05 | $7700.00 | Window Closed / Lapsed |