Patent US3071817A successfully refreshed from Google Patents.
US3071817A
Expired / Lapsed
US
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Overshoe heel
Assignee: Uniroyal Inc
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Filing: 1959-08-14
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Granted: 1963-01-08
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Expires: 1979-08-14
Abstract
No abstract record available.
Inventors
- 👤 Fernand R Laporte
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 21:18
CPC Classifications
A; A43; A43B; A43B3/00; A43B3/16; A43D; A43D25/00; A43D25/12; A43D25/126; B; B29; B29C; B29C41/00; B29C41/02; B29C41/18; B29C41/22; B29C2791/00; B29C2791/001; B29K; B29K2105/00; B29K2105/0058; B29K2105/0061; B29L; B29L2031/00; B29L2031/48; B29L2031/50; B29L2031/502
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
87 words
A METHOD OF FORMING A PLASTIC OVERSHOE HAVING A HEEL PORTION SEPARATELY WALLED FROM THE SOLE PORTION COMPRISING THE STEPS OF POURING A QUANTITY OF PLASTISOL INTO AN OVERSHOE MOLD, APPLYING HEAT TO THE MOLD TO GEL A LAYER OF PLASTISOL ADHERING TO THE INNER WALL OF SAID MOLD, REMOVING THE REMAINING LIQUID PLASTISOL FROM THE MOLD, POURING A PREDETERMINED AMOUNT OF PLASTISOL SOLELY INTO SAID HEEL PORTION WHILE ALLOWING THE WALLS OF SAID HEEL PORTION TO SERVE AS A MOLD WHILE THE PLASTIC OF THE OVER-
Claim 2
Independent Claim
87 words
A METHOD OF FORMING A PLASTIC OVERSHOE HAVING A HEEL PORTION SEPARATELY WALLED FROM THE SOLE PORTION COMPRISING THE STEPS OF POURING A QUANTITY OF PLASTISOL INTO AN OVERSHOE MOLD, APPLYING HEAT TO THE MOLD TO GEL A LAYER OF PLASTISOL ADHERING TO THE INNER WALL OF SAID MOLD, REMOVING THE REMAINING LIQUID PLASTISOL FROM THE MOLD, POURING A PREDETERMINED AMOUNT OF PLASTISOL SOLELY INTO SAID HEEL PORTION WHILE ALLOWING THE WALLS OF SAID HEEL PORTION TO SERVE AS A MOLD WHILE THE PLASTIC OF THE OVER-
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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) | 1966-01-07 | 1966-07-09 | 1967-01-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-07 | 1970-07-09 | 1971-01-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-07 | 1974-07-09 | 1975-01-08 | $7700.00 | Window Closed / Lapsed |