Patent US2122417A successfully refreshed from Google Patents.
US3223551A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Leather-like material and method of making the same
Assignee: United Shoe Machinery Corp
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Filing: 1963-02-05
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Granted: 1965-12-14
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Expires: 1983-02-05
Abstract
No abstract record available.
Inventors
- 👤 Tu Shu-Tung
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 15:51
CPC Classifications
C; C08; C08L; C08L89/00; C08L89/04; C08L89/06; Y; Y10; Y10S; Y10S428/00; Y10S428/904; Y10T; Y10T428/00; Y10T428/26; Y10T428/268
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
121 words
THE PROCESS OF FORMING A LEATHER-LIKE MATERIAL WHICH COMPRISES THE STEPS OF APPLYING TO AN INTERMESHED FIBER MASS IN PENETRATING RELATION AN AQUEOUS SUSPENSION CONTAINING FROM ABOUT 1% TO ABOUT 5% BY WEIGHT BASED ON THE WEIGHT OF THE SUSPENSION OF SWOLLEN DISTINCT FINE COLLAGEN FIBERS OF MICROSCOPIC SIZE TO CARRY SAID COLLAGEN FIBERS INTO THE INTERSTITIAL SPACES OF SAID INTERMESHED FIBER MASS, SAID SUSPENSION HAVING A PH OUTSIDE THE ISOELECTRIC RANGE OF SAID COLLAGEN FIBER, REMOVING THE SWELLING WATER FROM SAID FINE SHORT COLLAGEN FIBERS IN THE INTERSTITIAL SPACES OF SAID INTERMESHED FIBER MASS TO REAGGREGATE THEM INTO A LARGER COLLAGEN FIBER STRUCTURE WITHIN THE INTERSTITIAL SPACES THROUGHOUT SAID MASS OF INTERMESHED FIBERS TO REINFORCE SAID INTERMESHED FIBERS AGAINST DISPLACEMENT.
Claim 2
Dependent Claim
121 words
THE PROCESS OF FORMING A LEATHER-LIKE MATERIAL WHICH COMPRISES THE STEPS OF APPLYING TO AN INTERMESHED FIBER MASS IN PENETRATING RELATION AN AQUEOUS SUSPENSION CONTAINING FROM ABOUT 1% TO ABOUT 5% BY WEIGHT BASED ON THE WEIGHT OF THE SUSPENSION OF SWOLLEN DISTINCT FINE COLLAGEN FIBERS OF MICROSCOPIC SIZE TO CARRY SAID COLLAGEN FIBERS INTO THE INTERSTITIAL SPACES OF SAID INTERMESHED FIBER MASS, SAID SUSPENSION HAVING A PH OUTSIDE THE ISOELECTRIC RANGE OF SAID COLLAGEN FIBER, REMOVING THE SWELLING WATER FROM SAID FINE SHORT COLLAGEN FIBERS IN THE INTERSTITIAL SPACES OF SAID INTERMESHED FIBER MASS TO REAGGREGATE THEM INTO A LARGER COLLAGEN FIBER STRUCTURE WITHIN THE INTERSTITIAL SPACES THROUGHOUT SAID MASS OF INTERMESHED FIBERS TO REINFORCE SAID INTERMESHED FIBERS AGAINST DISPLACEMENT.
Claim 3
Dependent Claim
112 words
AN OPEN-FIBERED LEATHER-LIKE MATERIAL COMPRISING A MASS IN INTERMESHED NONWOVEN FIBERS AND ASSOCIATED COLLAGEN FIBER STRUCTURE EXTENDING THROUGH THE INTERSTICES IN SAID MASS OF FIBERS TO REINFORCE THE FIBERS OF SAID MASS AGAINST DISPLACEMENT, SAID COLLAGEN FIBER STRUCTURE POSSESSING THE SPECIAL ASSOCIATION WITH THE FIBERS OF SAID MASS SECURED BY FORMATION IN SITU IN THE INTERSTITIAL SPACES OF SAID MASS OF INTERMESHED FIBERS FROM AN AQUEOUS SUSPENSION OF SHORT DISTINCT SWOLLEN COLLAGEN FIBERS OF MICROSCOPIC SIZE BY REMOVING THE SWELLING WATER FROM THE COLLAGEN FIBERS IN THE INTERSTITIAL SPACES OF SAID INTERMESHED FIBER MASS TO REAGGREGATE THEM INTO A LARGER COLLAGEN FIBER STRUCTURE IN REINFORCEING RELATION TO THE FIBERS OF SAID MASS.
Claim 4
Dependent Claim
112 words
AN OPEN-FIBERED LEATHER-LIKE MATERIAL COMPRISING A MASS IN INTERMESHED NONWOVEN FIBERS AND ASSOCIATED COLLAGEN FIBER STRUCTURE EXTENDING THROUGH THE INTERSTICES IN SAID MASS OF FIBERS TO REINFORCE THE FIBERS OF SAID MASS AGAINST DISPLACEMENT, SAID COLLAGEN FIBER STRUCTURE POSSESSING THE SPECIAL ASSOCIATION WITH THE FIBERS OF SAID MASS SECURED BY FORMATION IN SITU IN THE INTERSTITIAL SPACES OF SAID MASS OF INTERMESHED FIBERS FROM AN AQUEOUS SUSPENSION OF SHORT DISTINCT SWOLLEN COLLAGEN FIBERS OF MICROSCOPIC SIZE BY REMOVING THE SWELLING WATER FROM THE COLLAGEN FIBERS IN THE INTERSTITIAL SPACES OF SAID INTERMESHED FIBER MASS TO REAGGREGATE THEM INTO A LARGER COLLAGEN FIBER STRUCTURE IN REINFORCEING RELATION TO THE FIBERS OF SAID MASS.
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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) | 1968-12-13 | 1969-06-14 | 1969-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-13 | 1973-06-14 | 1973-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-13 | 1977-06-14 | 1977-12-14 | $7700.00 | Window Closed / Lapsed |