US3372415A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shoe forming method and apparatus
Assignee: Individual
•
Filing: 1964-01-23
•
Granted: 1968-03-12
•
Expires: 1984-01-23
Abstract
No abstract record available.
Inventors
- 👤 Robert E King
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 21:30
CPC Classifications
A; A43; A43D; A43D25/00; A43D25/06; A43D25/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
THE METHOD OF FABRICATING A SHOE COMPRISING THE STEPS OF: (A) FORMING A FLAT UPPER BLANK, (B) PERFORATING SAID BLANK IN THE TOE AND HEEL PORTIONS THEREOF, (C) PLACING SAID BLANK OVER A DIE CAVITY, (D) INJECTING A LIQUID ELASTOMERIC MATERIAL THROUGH ONE OF SAID PERFORATIONS WHILE SAID BLANK IS MAINTAINED IN A GENERALLY FLAT CONDITION AND VENTING SAID CAVITY THROUGH THE OTHER PERFORATION, (E) HEATING SAID MATERIAL SUFFICIENTLY TO CURE IT, AND, (F) FOLDING AND SEWING THE PORTIONS OF SAID BLANK NOT MOLDED TO THE SOLE INTO A CONTOURED SHOE UPPER HAVING A FOOT-RECEIVING CONFIGURATION.
Claim 2
Independent Claim
96 words
THE METHOD OF FABRICATING A SHOE COMPRISING THE STEPS OF: (A) FORMING A FLAT UPPER BLANK, (B) PERFORATING SAID BLANK IN THE TOE AND HEEL PORTIONS THEREOF, (C) PLACING SAID BLANK OVER A DIE CAVITY, (D) INJECTING A LIQUID ELASTOMERIC MATERIAL THROUGH ONE OF SAID PERFORATIONS WHILE SAID BLANK IS MAINTAINED IN A GENERALLY FLAT CONDITION AND VENTING SAID CAVITY THROUGH THE OTHER PERFORATION, (E) HEATING SAID MATERIAL SUFFICIENTLY TO CURE IT, AND, (F) FOLDING AND SEWING THE PORTIONS OF SAID BLANK NOT MOLDED TO THE SOLE INTO A CONTOURED SHOE UPPER HAVING A FOOT-RECEIVING CONFIGURATION.
References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-03-12 | 1971-09-11 | 1972-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-12 | 1975-09-11 | 1976-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-12 | 1979-09-11 | 1980-03-12 | $7700.00 | Window Closed / Lapsed |