Patent US3302228A successfully refreshed from Google Patents.
US3302228A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods of lasting shoes
Assignee: United Shoe Machinery Corp
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Filing: 1965-02-02
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Granted: 1967-02-07
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Expires: 1985-02-02
Abstract
No abstract record available.
Inventors
- 👤 Elroy J Bryant
- 👤 Charles A Fling
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:06
CPC Classifications
A; A43; A43D; A43D21/00; A43D21/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
126 words
A METHOD OF LASTING THE END PORTION OF A SHOE WHICH COMPRISES THE STEPS OF APPLYING TO THE INSIDE SURFACE OF THE LASTING MARGIN OF AN END PORTION OF THE UPPER OF A SHOE AN ADHERENT LAYER OF THERMOPLASTIC ADHESIVE WHICH AT AMBIENT TEMPERATURE IS NON-TACKY, ASSEMBLING THE UPPER WITH AN INSOLE ON A LAST, SUBJECTING THE UPPER AND LAYER OF ADHESIVE TO THE SOFTENING ACTION OF MOISTURE LADEN HEATED AIR AT A TEMPERATURE BELOW THAT AT WHICH THE ADHESIVE BECOMS TACKY, SHAPING THE SAID END PORTION OF THE UPPER TO THE END PORTION OF THE LAST, HEATING THE EXPOSED SURFACE OF THE END PORTION OF THE INSOLE, AND SIMULTANESOULY WIPING THE LASTING MARGIN OF THE UPPER INWARDLY OVER AND PRESSING IT AGAINST THE HEATED SURFACE
Claim 2
Independent Claim
126 words
A METHOD OF LASTING THE END PORTION OF A SHOE WHICH COMPRISES THE STEPS OF APPLYING TO THE INSIDE SURFACE OF THE LASTING MARGIN OF AN END PORTION OF THE UPPER OF A SHOE AN ADHERENT LAYER OF THERMOPLASTIC ADHESIVE WHICH AT AMBIENT TEMPERATURE IS NON-TACKY, ASSEMBLING THE UPPER WITH AN INSOLE ON A LAST, SUBJECTING THE UPPER AND LAYER OF ADHESIVE TO THE SOFTENING ACTION OF MOISTURE LADEN HEATED AIR AT A TEMPERATURE BELOW THAT AT WHICH THE ADHESIVE BECOMS TACKY, SHAPING THE SAID END PORTION OF THE UPPER TO THE END PORTION OF THE LAST, HEATING THE EXPOSED SURFACE OF THE END PORTION OF THE INSOLE, AND SIMULTANESOULY WIPING THE LASTING MARGIN OF THE UPPER INWARDLY OVER AND PRESSING IT AGAINST THE HEATED SURFACE
References Cited (Backward Citations)
US1809364A
Cited
US1919657A
Cited
US2104228A
Cited
US2235887A
Cited
US2206900A
Cited
US2970331A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-02-06 | 1970-08-08 | 1971-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-06 | 1974-08-08 | 1975-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-06 | 1978-08-08 | 1979-02-07 | $7700.00 | Window Closed / Lapsed |