US3246068A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Injection molded shoe bottom
Assignee: Joseph F Corcoran Shoe Co Inc
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Filing: 1963-05-09
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Granted: 1966-04-12
•
Expires: 1983-05-09
Abstract
No abstract record available.
Inventors
- 👤 Joseph J Ferreira
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 11:01
CPC Classifications
B; B29; B29D; B29D35/00; B29D35/06; B29D35/061; B29D35/065
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
56 words
THE PROCESS OF INJECTION MOLDING SHOE BOTTOMS, CHARACTERIZED BY THE STEPS OF FORMING A MOLD OF WHICH THE LASTED SHOE BOTTOM IS A PART, FASTENING A LEATHER SOLE BLANK IN SPACED PREDETERMINED RELATION WITH RESPECT TO THE SHOE BOTTOM, AND THEN INJECTING FLUID PVC THROUGH A HOLE IN THE SOLE BLANK THEREBY FILLING THE SPACE BETWEEN
Claim 2
Dependent Claim
56 words
THE PROCESS OF INJECTION MOLDING SHOE BOTTOMS, CHARACTERIZED BY THE STEPS OF FORMING A MOLD OF WHICH THE LASTED SHOE BOTTOM IS A PART, FASTENING A LEATHER SOLE BLANK IN SPACED PREDETERMINED RELATION WITH RESPECT TO THE SHOE BOTTOM, AND THEN INJECTING FLUID PVC THROUGH A HOLE IN THE SOLE BLANK THEREBY FILLING THE SPACE BETWEEN
References Cited (Backward Citations)
US2607061A
Cited
FR1016468A
Cited
US2799034A
Cited
US2794270A
Cited
US3026573A
Cited
GB840839A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-04-11 | 1969-10-11 | 1970-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-04-11 | 1973-10-11 | 1974-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-04-11 | 1977-10-11 | 1978-04-12 | $7700.00 | Window Closed / Lapsed |