US2694871A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Footwear having soles of a varying porosity
Assignee: RO SCARCH Inc
•
Filing: 1950-09-28
•
Granted: 1954-11-23
•
Expires: 1970-09-28
Abstract
No abstract record available.
Inventors
- 👤 Rollman Heinz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:34
CPC Classifications
A; A43; A43B; A43B13/00; A43B13/38; Y; Y10; Y10T; Y10T428/00; Y10T428/249921; Y10T428/249953; Y10T428/249961; Y10T428/249987; Y10T428/249988
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1499166A
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US1624500A
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US1961745A
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GB371445A
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US1843893A
Cited
US1955720A
Cited
US2163289A
Cited
US2129106A
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US2284620A
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US2499751A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-11-22 | 1958-05-24 | 1958-11-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-22 | 1962-05-24 | 1962-11-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-22 | 1966-05-24 | 1966-11-23 | $7700.00 | Window Closed / Lapsed |