US3304946A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Crutch
Assignee: Individual
•
Filing: 1965-06-01
•
Granted: 1967-02-21
•
Expires: 1985-06-01
Abstract
No abstract record available.
Inventors
- 👤 William J Lutes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:23
CPC Classifications
A; A61; A61H; A61H3/00; A61H3/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
A CRUTCH COMPRISING A TELESCOPICALLY ADJUSTABLE STRAIGHT STAFF PORTION, AN ARMPIT SUPPORT PORTION HAVING A SOCKET IN ITS LOWER END TO RECEIVE THE UPPER END OF THE STAFF PORTION IN FITTED RELATION THEREIN, MEANS FOR RETAINING THE STAFF PORTION ROTATABLY WITHIN THE SOCKET OF THE ARMPIT SUPPORT PORTION, RELEASABLE ANCHOR MEANS FOR SECURING THE STAFF IN ROTATABLY ADJUSTED POSITION IN ITS SOCKET, A STIRRUP-LIKE HAND GRIP PORTION COMPRISING A MOUNTING ELEMENT MOUNTED FOR AXIAL AND ROTATIVE ADJUSTMENT ON THE STAFF PORTION, A GRIP SUPPORT ELEMENT MOUNTED ON THE MOUNTING ELEMENT AND DISPOSED AT AN ACUTE ANGLE TO THE LONGITUDINAL CENTER LINE OF THE STAFF PORTION, AND A GRIP ELEMENT MOUNTED ON THE OUTER END OF THE GRIP SUPPORT ELEMENT AND DISPOSED PERPENDICULAR TO, AND IN LATERALLY OFFSET RELATION TO THE STAFF PORTION, AND ANCHOR MEANS FOR SECURING THE HAND GRIP SUPPORT PORTION IN ROTATABLY AND AXIALLY ADJUSTED POSITION ON THE STAFF PORTION.
Claim 2
Dependent Claim
152 words
A CRUTCH COMPRISING A TELESCOPICALLY ADJUSTABLE STRAIGHT STAFF PORTION, AN ARMPIT SUPPORT PORTION HAVING A SOCKET IN ITS LOWER END TO RECEIVE THE UPPER END OF THE STAFF PORTION IN FITTED RELATION THEREIN, MEANS FOR RETAINING THE STAFF PORTION ROTATABLY WITHIN THE SOCKET OF THE ARMPIT SUPPORT PORTION, RELEASABLE ANCHOR MEANS FOR SECURING THE STAFF IN ROTATABLY ADJUSTED POSITION IN ITS SOCKET, A STIRRUP-LIKE HAND GRIP PORTION COMPRISING A MOUNTING ELEMENT MOUNTED FOR AXIAL AND ROTATIVE ADJUSTMENT ON THE STAFF PORTION, A GRIP SUPPORT ELEMENT MOUNTED ON THE MOUNTING ELEMENT AND DISPOSED AT AN ACUTE ANGLE TO THE LONGITUDINAL CENTER LINE OF THE STAFF PORTION, AND A GRIP ELEMENT MOUNTED ON THE OUTER END OF THE GRIP SUPPORT ELEMENT AND DISPOSED PERPENDICULAR TO, AND IN LATERALLY OFFSET RELATION TO THE STAFF PORTION, AND ANCHOR MEANS FOR SECURING THE HAND GRIP SUPPORT PORTION IN ROTATABLY AND AXIALLY ADJUSTED POSITION ON THE STAFF PORTION.
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) | 1970-02-20 | 1970-08-22 | 1971-02-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-20 | 1974-08-22 | 1975-02-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-20 | 1978-08-22 | 1979-02-21 | $7700.00 | Window Closed / Lapsed |