Patent US3624930A successfully refreshed from Google Patents.
US3624930A
Expired / Lapsed
US
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Insole with ventilating passages
Assignee: Individual
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Filing: 1969-07-30
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Granted: 1971-12-07
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Expires: 1989-07-30
Abstract
Abstract AN INNER SOLE FOR A SHOE, PROVIDED WITH LONGITUDINAL RESILIENTLY COMPRESSIBLE RIBS ALONG ITS UNDERFACE FORMING LONGITUDINAL OPEN CHANNELS THROUGHOUT THE ENTIRE LENGTH OF THE INSOLE FROM THE HEEL END TO THE TOE END, SO THAT AFTERNATING FOOT PRESSURE THEREON FROM THE HEEL TO THE TOE, PUMPS AIR TOWARD THE TOE, VENTILATING HOLES EXTEND THROUGH THE INSOLE FROM THE CHANNELS UPWARDLY TO DIRECT AIR TO THE TOES.
Inventors
- 👤 Oney A Johnson
- 👤 Robert A Clark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:29
CPC Classifications
A; A43; A43B; A43B17/00; A43B17/08
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) | 1974-12-06 | 1975-06-07 | 1975-12-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-06 | 1979-06-07 | 1979-12-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-06 | 1983-06-07 | 1983-12-07 | $7700.00 | Window Closed / Lapsed |