Patent US3226770A successfully refreshed from Google Patents.
US3226770A
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US
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Molds for shoe sole and heel units
Assignee: United Shoe Machinery Corp
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Filing: 1963-01-11
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Granted: 1966-01-04
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Expires: 1983-01-11
Abstract
No abstract record available.
Inventors
- 👤 Paul W Senfleben
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:25
CPC Classifications
B; B29; B29D; B29D35/00; B29D35/0009; B29D35/0018; B29D35/0054; B29D35/0063; B29D35/12; B29D35/128; B29C; B29C35/00; B29K; B29K2021/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
148 words
A SHOE SOLE AND HEEL UNIT MOLD ASSEMBLY, COMPRISING A MAIN BODY BLOCK OF UNIFORM THICKNESS HAVING A SMOOTH WALLED CAVITY FITTING THE OUTER CONTOUR OF A SHOE SOLE AND HEEL UNIT AND A DOUBLE TREAD FORMER SHAPED ON EITHER SIDE WITH AN IMPRESSION OF THE LOWER SURFACE OF A UNIT, THE IMPRESSION FOR ONE SIDE CORRESPONDING TO THAT FOR A RIGHT UNIT AND FOR THE OTHER SIDE CORRESPONDING SO THAT FOR A RIGHT UNIT AND FOR THE OTHER SIDE CORRESPONDING TO THAT FOR A LEFT UNIT AND A PERIPHERAL CONTOUR CONFORMED TO THE WALL OF THE CAVITY IN THE MAIN BODY BLOCK AND SECURED THEREIN TO PROVIDE TWO MOLDING SPACES, IN COMBINATION WITH TWO COVER PLATES ENGAGING OPPOSITE SIDES OF THE BODY BLOCK INSIDE ITS CAVITY WITH FLASH-FREE AIR VENT CLEARANCES TO ENABLE SHARP OUTLINE IMPRESSIONS ABOUT PERIPHERIES OF THE MOLD SPACES WITHOUT LEAKAGE OF MOLDING MATERIAL.
Claim 2
Dependent Claim
148 words
A SHOE SOLE AND HEEL UNIT MOLD ASSEMBLY, COMPRISING A MAIN BODY BLOCK OF UNIFORM THICKNESS HAVING A SMOOTH WALLED CAVITY FITTING THE OUTER CONTOUR OF A SHOE SOLE AND HEEL UNIT AND A DOUBLE TREAD FORMER SHAPED ON EITHER SIDE WITH AN IMPRESSION OF THE LOWER SURFACE OF A UNIT, THE IMPRESSION FOR ONE SIDE CORRESPONDING TO THAT FOR A RIGHT UNIT AND FOR THE OTHER SIDE CORRESPONDING SO THAT FOR A RIGHT UNIT AND FOR THE OTHER SIDE CORRESPONDING TO THAT FOR A LEFT UNIT AND A PERIPHERAL CONTOUR CONFORMED TO THE WALL OF THE CAVITY IN THE MAIN BODY BLOCK AND SECURED THEREIN TO PROVIDE TWO MOLDING SPACES, IN COMBINATION WITH TWO COVER PLATES ENGAGING OPPOSITE SIDES OF THE BODY BLOCK INSIDE ITS CAVITY WITH FLASH-FREE AIR VENT CLEARANCES TO ENABLE SHARP OUTLINE IMPRESSIONS ABOUT PERIPHERIES OF THE MOLD SPACES WITHOUT LEAKAGE OF MOLDING MATERIAL.
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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) | 1969-01-03 | 1969-07-05 | 1970-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-03 | 1973-07-05 | 1974-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-03 | 1977-07-05 | 1978-01-04 | $7700.00 | Window Closed / Lapsed |