Patent US3664043A successfully refreshed from Google Patents.
US3664043A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Accessory for footwear
Assignee: Individual
•
Filing: 1970-10-14
•
Granted: 1972-05-23
•
Expires: 1990-10-14
Abstract
Abstract A tightening device for footwear includes an elongated air tight inflatable pad enclosed in the footwear and means for injecting compressed air into the pad so that it expands drawing the footwear tightly to the foot. Valve means are also provided to release the compressed air from the pad when it is to be deflated. An arrangement wherein the inflatable pad can be removably secured to the footwear is also disclosed.
Inventors
- 👤 Emile A Polumbus Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:38
CPC Classifications
A; A43; A43B; A43B5/00; A43B5/04; A43B5/0405; A43B5/0407; A43B23/00; A43B23/02; A43B23/0245; A43B23/028; A43B23/029
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
68 words
An accessory for footwear comprising in combination an elongated casing having a pocket portion along its longitudinal center, elongated strip portions along the longitudinal edges of the casing adjacent the side edges of the pocket portion, said elongated strip portions including attachment means for releasably attaching the casing to footwear, and an inflatable pad received in the pocket having valve means through which the pad can be inflated.
Claim 2
Dependent Claim
68 words
An accessory for footwear comprising in combination an elongated casing having a pocket portion along its longitudinal center, elongated strip portions along the longitudinal edges of the casing adjacent the side edges of the pocket portion, said elongated strip portions including attachment means for releasably attaching the casing to footwear, and an inflatable pad received in the pocket having valve means through which the pad can be inflated.
Claim 3
Dependent Claim
33 words
The accessory of claim 1 wherein said attachment means comprises a plurality of longitudinally aligned openings through the strip portions through which laces can be threaded to secure the casing to the footwear.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-23 | 1975-11-22 | 1976-05-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-23 | 1979-11-22 | 1980-05-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-23 | 1983-11-22 | 1984-05-23 | $7700.00 | Window Closed / Lapsed |