US2822557A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods of making flexible forepart shoes
Assignee: United Shoe Machinery Corp
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Filing: 1955-06-29
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Granted: 1958-02-11
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Expires: 1975-06-29
Abstract
No abstract record available.
Inventors
- 👤 Karl A Stritter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 03:41
CPC Classifications
A; A43; A43B; A43B9/00; A43B9/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
59 words
THAT IMPROVEMENT IN METHODS OF MAKING FLEXIBLE SHOES CONSISTS IN PROVIDING A FLEXIBLE INSOLE STIFFENED WITH AMYLACEOUS MATERIAL TO MAINTAIN THE FEATHER LINE OF THE SHOE, COMPLETING THE SHOE TO THE STAGE WHERE AN OUTSOLE IS TO BE APPLIED, THEN REDUCING THE STIFFNESS OF THE INSOLE BY APPLYING AN ENZYME TO THE AMYLACEOUS MATERIAL, AND THEN APPLYING THE OUTSOLE.
Claim 2
Dependent Claim
59 words
THAT IMPROVEMENT IN METHODS OF MAKING FLEXIBLE SHOES CONSISTS IN PROVIDING A FLEXIBLE INSOLE STIFFENED WITH AMYLACEOUS MATERIAL TO MAINTAIN THE FEATHER LINE OF THE SHOE, COMPLETING THE SHOE TO THE STAGE WHERE AN OUTSOLE IS TO BE APPLIED, THEN REDUCING THE STIFFNESS OF THE INSOLE BY APPLYING AN ENZYME TO THE AMYLACEOUS MATERIAL, AND THEN APPLYING THE OUTSOLE.
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) | 1961-02-10 | 1961-08-12 | 1962-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-10 | 1965-08-12 | 1966-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-10 | 1969-08-12 | 1970-02-11 | $7700.00 | Window Closed / Lapsed |