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US2933418A
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Impregnation of the grain side of leather with polysulfides
Assignee: Individual
•
Filing: 1959-02-04
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Granted: 1960-04-19
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Expires: 1979-02-04
Abstract
No abstract record available.
Inventors
- 👤 Eugene C Dogliotti
- 👤 Joseph C Barry
- 👤 Charles W Mann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 05:28
CPC Classifications
C; C14; C14C; C14C9/00; Y; Y10; Y10T; Y10T428/00; Y10T428/4935
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
106 words
METHOD OF TREATING LEATHER, WHICH COMPRISES IMPREGNATING SAID LEATHER FROM THE GRAIN SURFACE INWARDLY WITH A LIQUID COMPOSISTION COMPRISING FROM ABOUT 50 TO ABOUT 80 PARTS BY WEIGHT OF A LIQUID ALKYLENE POLYSULFIDE POLYMER CAPABLE OF BEING CURED TO FORM AN ELASTOMER, AND FROM ABOUT 20 TO ABOUT 50 PARTS BY WEIGHT OF A MEMBER OF THE GROUP CONSISTING OF TETRAHYDROFURFURYL ALCHOL, MORPHOLINE, AND A MIXTURE OF TETRAHYDROFURFURYL ALCOHOL AND MORPHOLINE, AND AT LEAST PARTIALLY CURING SAID COMPOSITION IN THE INTERFIBER SPACE OF SAID LEATHER AT A TEMPERATURE ABOVE ROOM TEMPERATURE BUT NON-INJURIOUS TO SAID LEATHER, WHEREBY A FLEXIBLE, LIQUID-RESISTANT AND COLD-WEATHER-RESISTANT IMPREGNATED LEATHER IS OBTAINED.
Claim 2
Dependent Claim
106 words
METHOD OF TREATING LEATHER, WHICH COMPRISES IMPREGNATING SAID LEATHER FROM THE GRAIN SURFACE INWARDLY WITH A LIQUID COMPOSISTION COMPRISING FROM ABOUT 50 TO ABOUT 80 PARTS BY WEIGHT OF A LIQUID ALKYLENE POLYSULFIDE POLYMER CAPABLE OF BEING CURED TO FORM AN ELASTOMER, AND FROM ABOUT 20 TO ABOUT 50 PARTS BY WEIGHT OF A MEMBER OF THE GROUP CONSISTING OF TETRAHYDROFURFURYL ALCHOL, MORPHOLINE, AND A MIXTURE OF TETRAHYDROFURFURYL ALCOHOL AND MORPHOLINE, AND AT LEAST PARTIALLY CURING SAID COMPOSITION IN THE INTERFIBER SPACE OF SAID LEATHER AT A TEMPERATURE ABOVE ROOM TEMPERATURE BUT NON-INJURIOUS TO SAID LEATHER, WHEREBY A FLEXIBLE, LIQUID-RESISTANT AND COLD-WEATHER-RESISTANT IMPREGNATED LEATHER IS OBTAINED.
References Cited (Backward Citations)
US2466963A
Cited
US2824816A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-19 | 1963-10-19 | 1964-04-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-19 | 1967-10-19 | 1968-04-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-19 | 1971-10-19 | 1972-04-19 | $7700.00 | Window Closed / Lapsed |