US3102837A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stiffener material for shoes
Assignee: United Shoe Machinery Corp
•
Filing: 1961-03-13
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Granted: 1963-09-03
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Expires: 1981-03-13
Abstract
No abstract record available.
Inventors
- 👤 Stanley M Griswold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:15
CPC Classifications
D; D04; D04H; D04H1/00; D04H1/70; D04H1/72; D04H1/732; D04H1/40; D04H1/58; D04H1/587; D04H1/593; D04H1/60
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
119 words
IN A HARDENABLE SHEET MATERIAL FOR STIFFENING END PORTIONS OF SHOES COMPRISING A POROUS LAYER OF WATER-LAID FIBERS INTERMIXED WITH DISCRETE PARTICLES OF NORMALLY SOLIDS, ORGANIC SOLVENT-SOLUBLE COALESCIBLE STIFFENING AGENT WITH SAID PARTICLES BEING PRESENT IN THE RATIO OF FROM ABOUT 1 TO ABOUT 5 PARTS BY WEIGHT TO 1 PART BY WEIGHT OF FIBERS, THE IMPROVEMENT INCLUDING A COHERENT DEPOSIT OF A BINDER ON SAID FIBERS AND PARITCLES FROM ONE SURFACE IN TO A DEPTH OF A SUBSTANTIAL PORTION OF THE THICKNESS OF SAID LAYER AND HOLDING SAID FIBERS AND PARTICLES IN ASSOCIATED RELATION BUT NOT CLOSING THE PORES OF SAID LAYER, SAID BINDER BEING SWELLABLE TO TACKY CONDITION BY AN ORGANIC SOLVENT ACTIVATOR FOR SAID SHEET MATERIAL.
Claim 2
Dependent Claim
119 words
IN A HARDENABLE SHEET MATERIAL FOR STIFFENING END PORTIONS OF SHOES COMPRISING A POROUS LAYER OF WATER-LAID FIBERS INTERMIXED WITH DISCRETE PARTICLES OF NORMALLY SOLIDS, ORGANIC SOLVENT-SOLUBLE COALESCIBLE STIFFENING AGENT WITH SAID PARTICLES BEING PRESENT IN THE RATIO OF FROM ABOUT 1 TO ABOUT 5 PARTS BY WEIGHT TO 1 PART BY WEIGHT OF FIBERS, THE IMPROVEMENT INCLUDING A COHERENT DEPOSIT OF A BINDER ON SAID FIBERS AND PARITCLES FROM ONE SURFACE IN TO A DEPTH OF A SUBSTANTIAL PORTION OF THE THICKNESS OF SAID LAYER AND HOLDING SAID FIBERS AND PARTICLES IN ASSOCIATED RELATION BUT NOT CLOSING THE PORES OF SAID LAYER, SAID BINDER BEING SWELLABLE TO TACKY CONDITION BY AN ORGANIC SOLVENT ACTIVATOR FOR SAID SHEET MATERIAL.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-09-02 | 1967-03-04 | 1967-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-09-02 | 1971-03-04 | 1971-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-09-02 | 1975-03-04 | 1975-09-03 | $7700.00 | Window Closed / Lapsed |