US2880468A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of molding articles
Assignee: Uniroyal Inc
•
Filing: 1956-10-19
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Granted: 1959-04-07
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Expires: 1976-10-19
Abstract
No abstract record available.
Inventors
- 👤 Mooney Melvin
- 👤 Theodore L Ether
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:11
CPC Classifications
B; B29; B29D; B29D35/00; B29D35/12; B29D35/122; B29C; B29C41/00; B29C41/02; B29C41/04; B29K; B29K2021/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
A METHOD OF FORMING A SHOE HAVING A SOLE WITH A CONCAVE PARABOLOIDAL INNER SUDRFACE BY GELIN A PLASTISOL I A MOLD WHICH IS MOUNTED TO ROTATE ABOUT AN AXIS COINCIDING WITH THE AXIS OF SAID PARABOLOIDAL SURFACE, WHICH METHOD COMPRISES ROTATING SAID MOLD ABOUT SAID AXIS WITH SAID AXIS INCLINED AT AN ANGLE WITH THE VERTICAL DURING THE GELATION OF A PART OF THE PLASTISOL, THEREBY TO FORM THE UPPER PORTIONS OF SAID SHOE AND THEN AJUSTING SAID AXIS OF ROTATION TO BE VERTICAL AND ROTATION MOLD ABOUT SAID AXIS DURING GELATION OF ANOTHER PART OF SAID PLASTISOL. THEREBY TO FORM THE INNER SOLE SURFACE OF SAID SHOE, THE SPEED OF ROTATION BEING SUCH AS TO CAUSE THE SURFACE OF SAID PLASTISOL TO ASSUME THE DESIRED PARABOLOIDAL SHAPE.
Claim 2
Independent Claim
129 words
A METHOD OF FORMING A SHOE HAVING A SOLE WITH A CONCAVE PARABOLOIDAL INNER SUDRFACE BY GELIN A PLASTISOL I A MOLD WHICH IS MOUNTED TO ROTATE ABOUT AN AXIS COINCIDING WITH THE AXIS OF SAID PARABOLOIDAL SURFACE, WHICH METHOD COMPRISES ROTATING SAID MOLD ABOUT SAID AXIS WITH SAID AXIS INCLINED AT AN ANGLE WITH THE VERTICAL DURING THE GELATION OF A PART OF THE PLASTISOL, THEREBY TO FORM THE UPPER PORTIONS OF SAID SHOE AND THEN AJUSTING SAID AXIS OF ROTATION TO BE VERTICAL AND ROTATION MOLD ABOUT SAID AXIS DURING GELATION OF ANOTHER PART OF SAID PLASTISOL. THEREBY TO FORM THE INNER SOLE SURFACE OF SAID SHOE, THE SPEED OF ROTATION BEING SUCH AS TO CAUSE THE SURFACE OF SAID PLASTISOL TO ASSUME THE DESIRED PARABOLOIDAL SHAPE.
References Cited (Backward Citations)
US669119A
Cited
US2719327A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-04-06 | 1962-10-06 | 1963-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-04-06 | 1966-10-06 | 1967-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-04-06 | 1970-10-06 | 1971-04-07 | $7700.00 | Window Closed / Lapsed |