US3079709A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Top lifts
Assignee: Individual
•
Filing: 1960-06-24
•
Granted: 1963-03-05
•
Expires: 1980-06-24
Abstract
No abstract record available.
Inventors
- 👤 Yankov Kiril
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:40
CPC Classifications
A; A43; A43B; A43B21/00; A43B21/36; A43B21/47; A43B21/48
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
IN A SHOE HEEL HAVING A DETACHABLE TOP LIFT, COOPERATING MEANS FOR THE QUICK REMOVAL OF A WORN-OUT TOP LIFT AND REPLACEMENT THEREOF BY A NEW ONE, SAID COOPERATING MEANS COMPRISING: A CENTRAL SUBSTANTIALLY VERTICAL RECESS IN THE SHOE HEEL; A FIXED ASSEMBLY COMPRISING A FIXED TUBE FORCE-FITTED IN SAID RECESS; A MOVABLE ASSEMBLY COMPRISING AN INNER TUBE SLIDABLE IN AND OUT OF SAID FIXED TUBE, HAVING AN UPPER EDGE AND A LOWER END EMBEDDED IN SAID TOP LIFT; A FIRST HOLE IN SAID INNER TUBE INTERMEDIATE THE HEIGHT THEREOF; A SECOND CORRESPONDING HOLE IN SAID FIXED TUBE; A FIRST SPRING FITTED IN SAID INNER TUBE AND HAVING AN OUTER LATERAL PROJECTION ADAPTED TO ENGAGE REMOVABLY SAID FIRST AND SECOND HOLES WHEN SAID MOVABLE ASSEMBLY IS FULLY INSERTED WITHIN SAID FIXED TUBE; AN APERTURE IN SAID INNER TUBE AND A CORRESPONDING TRANSVERSE CHANNEL, BOTH AT THE LOWER END OF SAID FIXED TUBE
Claim 2
Dependent Claim
152 words
IN A SHOE HEEL HAVING A DETACHABLE TOP LIFT, COOPERATING MEANS FOR THE QUICK REMOVAL OF A WORN-OUT TOP LIFT AND REPLACEMENT THEREOF BY A NEW ONE, SAID COOPERATING MEANS COMPRISING: A CENTRAL SUBSTANTIALLY VERTICAL RECESS IN THE SHOE HEEL; A FIXED ASSEMBLY COMPRISING A FIXED TUBE FORCE-FITTED IN SAID RECESS; A MOVABLE ASSEMBLY COMPRISING AN INNER TUBE SLIDABLE IN AND OUT OF SAID FIXED TUBE, HAVING AN UPPER EDGE AND A LOWER END EMBEDDED IN SAID TOP LIFT; A FIRST HOLE IN SAID INNER TUBE INTERMEDIATE THE HEIGHT THEREOF; A SECOND CORRESPONDING HOLE IN SAID FIXED TUBE; A FIRST SPRING FITTED IN SAID INNER TUBE AND HAVING AN OUTER LATERAL PROJECTION ADAPTED TO ENGAGE REMOVABLY SAID FIRST AND SECOND HOLES WHEN SAID MOVABLE ASSEMBLY IS FULLY INSERTED WITHIN SAID FIXED TUBE; AN APERTURE IN SAID INNER TUBE AND A CORRESPONDING TRANSVERSE CHANNEL, BOTH AT THE LOWER END OF SAID FIXED TUBE
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) | 1966-03-04 | 1966-09-03 | 1967-03-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-03-04 | 1970-09-03 | 1971-03-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-03-04 | 1974-09-03 | 1975-03-05 | $7700.00 | Window Closed / Lapsed |