US2611726A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shoe lining having self-stiffening properties
Assignee: Individual
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Filing: 1950-05-20
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Granted: 1952-09-23
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Expires: 1970-05-20
Abstract
No abstract record available.
Inventors
- 👤 Raymond B Harrison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:50
CPC Classifications
B; B32; B32B; B32B27/00; A; A43; A43B; A43B3/00; A43B3/0036; A43B3/0078; A43B3/0084; Y; Y10; Y10S; Y10S428/00; Y10S428/904; Y10T; Y10T428/00; Y10T428/23907; Y10T428/23914; Y10T428/23979; Y10T428/23993; Y10T428/24; Y10T428/24479; Y10T428/24612
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
132 words
A LAMINATED QUARTER LINING MOLDABLE UNDER HEAT AND PRESSURE HAVING SELF-STIFFENING PROPERTIES AND COMPRISING A FOUNDATION PLY OF A PLURALITY OF SHEETS OF FLANNEL IMPREGNATED AND BONDED TOGETHER WITH POLYVINYL ACETATE, A PLY OF TEXTILE FABRIC IMPREGNATED WITH A RUBBER LATEX AND HAVING AN EMBOSSED SURFACE COATING, AN INTERMEDIATE PLY OF A COMPOSITION CONSISTING OF OPAL WAX, ETHYL CELLULOSE AND STEARIC ACID ADAPTED TO UNITE ADHESIVELY THE FOUNDATION PLY AND THE EMBOSSED PLY, AND HAVING A FILM OF A COMPOSITION CONSISTING OF GUM ROSIN, EHTYL CELLULOSE AND STEARIC ACID ON THE OUTER SURFACE OF THE FOUNDATION PLY ADAPTED TO BECOME ADHESIVELY ACTIVATED AND TO SECURE THE LAMINATED COMBINATION TO THE OUTER INTEGUMENT OF THE UPPER OF THE SHOE WHEN SOFTENED DURING THE PULLING OVER AND HEEL LASTING STEPS OF THE SHOEMAKING PROCESS.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-09-23 | 1956-03-24 | 1956-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-09-23 | 1960-03-24 | 1960-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-09-23 | 1964-03-24 | 1964-09-23 | $7700.00 | Window Closed / Lapsed |