US3238089A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sheet stiffener material for shoes
Assignee: United Shoe Machinery Corp
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Filing: 1963-10-14
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Granted: 1966-03-01
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Expires: 1983-10-14
Abstract
No abstract record available.
Inventors
- 👤 Stanley M Griswold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:19
CPC Classifications
A; A43; A43B; A43B23/00; A43B23/08; A43B23/16; D; D06; D06N; D06N3/00; D06N3/0002; D06N3/0013; D06N3/0056; D06N3/0061; D06N3/04; D06N3/10; D06N2211/00; D06N2211/10; D06N2211/106; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24273; Y10T428/249921; Y10T428/249953; Y10T428/27; Y10T428/273; Y10T442/00; Y10T442/20; Y10T442/2361; Y10T442/2738
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
IN A SOLVENT-ACTIVATABLE SHEET MATERIAL FOR STIFFENING END PORTIONS OF SHOES COMPRISING A POROUS LAYER OF FIBERS CARRYING A NORMALLY SOLID, ORGANIC SOLVENT-SOLUBLE STIFFENING AGENT, THE IMPROVEMENT COMPRISING A RESIN FILM UNITED TO AND CONSTITUTING THE EXPOSED SURFACE OF ONE SIDE OF SAID SHEET MATERIAL, SAID RESIN FILM HAVING OPENINGS ALLOWING PASSAGE OF VOLATILE ORGANIC SOLVENT ACTIVATOR FOR SAID STIFFENING AGENT TO PERMIT SUBSTANTIALLY COMPLETE WET-OUT OF SAID POROUS LAYER, BUT RESISTING PASSAGE OF SOLVENTSOFTENED STIFFENING AGENT INTO CONTACT WITH A LAST AGAINST WHICH SAID SHEET MATERIAL MAY BE PRESSED IN SOLVENTACTIVATED CONDITION, THE RESIN OF SAID FILM BEING NONADHESIVE AND INSOLUBLE IN THE ORGANIC SOLVENT ACTIVATOR FOR SAID STIFFENING AGENT.
Claim 2
Dependent Claim
111 words
IN A SOLVENT-ACTIVATABLE SHEET MATERIAL FOR STIFFENING END PORTIONS OF SHOES COMPRISING A POROUS LAYER OF FIBERS CARRYING A NORMALLY SOLID, ORGANIC SOLVENT-SOLUBLE STIFFENING AGENT, THE IMPROVEMENT COMPRISING A RESIN FILM UNITED TO AND CONSTITUTING THE EXPOSED SURFACE OF ONE SIDE OF SAID SHEET MATERIAL, SAID RESIN FILM HAVING OPENINGS ALLOWING PASSAGE OF VOLATILE ORGANIC SOLVENT ACTIVATOR FOR SAID STIFFENING AGENT TO PERMIT SUBSTANTIALLY COMPLETE WET-OUT OF SAID POROUS LAYER, BUT RESISTING PASSAGE OF SOLVENTSOFTENED STIFFENING AGENT INTO CONTACT WITH A LAST AGAINST WHICH SAID SHEET MATERIAL MAY BE PRESSED IN SOLVENTACTIVATED CONDITION, THE RESIN OF SAID FILM BEING NONADHESIVE AND INSOLUBLE IN THE ORGANIC SOLVENT ACTIVATOR FOR SAID STIFFENING AGENT.
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) | 1969-02-28 | 1969-08-30 | 1970-03-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-28 | 1973-08-30 | 1974-03-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-28 | 1977-08-30 | 1978-03-01 | $7700.00 | Window Closed / Lapsed |