US2658004A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Last slip for removing shoes from lasts
Assignee: United Shoe Machinery Corp
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Filing: 1950-03-11
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Granted: 1953-11-03
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Expires: 1970-03-11
Abstract
No abstract record available.
Inventors
- 👤 John C Eldridge
- 👤 Francis A Flaherty
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 07:00
CPC Classifications
C; C09; C09G; C09G1/00; C09G1/02; A; A43; A43D; A43D3/00; A43D3/02; C08; C08K; C08K3/00; C08K3/34
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
A LAST SLIP ADAPTED TO FORM, WHEN APPLIED TO A LAST AND DRIED, A PULPY COATING HAVING LOW RESISTANCE TO SHEAR, SAID LAST SLIP COMPRISING A THICK BRUSHABLE FLUID, HIGH SOLIDS CONTENT BLEND OF A DISPERSION OF FINELY DIVIDED MICA IN A AQUEOUS MEDIUM AND AN AQUEOUS EMULSION OF A WATERINSOLUBLE WAX MELTING IN THE RANGE OF 45* C. TO 70* C., SAID MICA AND WAX BEING PRESENT IN THE RATIO OF FROM 4.5 TO 7.0 PARTS BY WEIGHT OF MICA TO 2 PARTS BY WEIGHT OF WAX.
Claim 2
Dependent Claim
88 words
A LAST SLIP ADAPTED TO FORM, WHEN APPLIED TO A LAST AND DRIED, A PULPY COATING HAVING LOW RESISTANCE TO SHEAR, SAID LAST SLIP COMPRISING A THICK BRUSHABLE FLUID, HIGH SOLIDS CONTENT BLEND OF A DISPERSION OF FINELY DIVIDED MICA IN A AQUEOUS MEDIUM AND AN AQUEOUS EMULSION OF A WATERINSOLUBLE WAX MELTING IN THE RANGE OF 45* C. TO 70* C., SAID MICA AND WAX BEING PRESENT IN THE RATIO OF FROM 4.5 TO 7.0 PARTS BY WEIGHT OF MICA TO 2 PARTS BY WEIGHT OF WAX.
References Cited (Backward Citations)
US2378521A
Cited
US2581407A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-11-02 | 1957-05-04 | 1957-11-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-11-02 | 1961-05-04 | 1961-11-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-11-02 | 1965-05-04 | 1965-11-03 | $7700.00 | Window Closed / Lapsed |