US3170475A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Attachment for a walking assist device
Assignee: Individual
•
Filing: 1963-02-11
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Granted: 1965-02-23
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Expires: 1983-02-11
Abstract
No abstract record available.
Inventors
- 👤 Gertrude P Forbes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:12
CPC Classifications
A; A61; A61H; A61H3/00; A45; A45B; A45B3/00; A45B9/00; A45B9/04
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
117 words
AN ATTACHMENT FOR A WALKING ASSIST DEVICE OF THE TYPE HAVING AN ELONGATED MEMBER WITH A GROUND-ENGAGING LOWER END PORTION, SAID ATTACHMENT COMPRISING A TOP PLATE MEMBER HAVING A BOTTOM FRICTIONAL SURFACE AND A SOCKET EXTENDING FROM THE UPPER SURFACE THEREOF, MEANS CONNECTED TO SAID PLATE MEMBER FOR REMOVABLY RETAINING SAID SOCKET IN MATING ENGAGING WITH SAID LOWER END PORTION OF SAID ELONGATE MEMBER, A LOWER PLATE MEMBER HAVING AN AREA GREATER THAN THAT OF SAID TOP PLATE MEMBER AND HAVING A BOTTOM SURFACE WITH FRICTIONAL CHARACTERISTICS DIFFERING FROM THOSE OF THE BOTTOM SURFACE OF SAID TOP PLATE MEMBER, AND MEANS FOR REMOVABLY SECURING SAID LOWER PLATE MEMBER OVER THE BOTTOM SURFACE OF SAID TOP PLATE MEMBER.
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) | 1968-02-23 | 1968-08-24 | 1969-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-02-23 | 1972-08-24 | 1973-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-02-23 | 1976-08-24 | 1977-02-23 | $7700.00 | Window Closed / Lapsed |