US3077673A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for drying and flexing of leather
Assignee: Aulson Tanning Machinery Co
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Filing: 1959-10-07
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Granted: 1963-02-19
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Expires: 1979-10-07
Abstract
No abstract record available.
Inventors
- 👤 Jerome M Cohen
- 👤 John W Aulson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:51
CPC Classifications
C; C14; C14B; C14B1/00; C14B1/26; C14B2700/00; C14B2700/07
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
96 words
A PROCESS FOR DRYING AND FLEXING SOFT, PLIABLE LEATHERS COMPRISING THE STEPS OF INSERTING MOISTURE LADEN SOFT LEATHER BETWEEN A PAIR OF SUPERPOSED, POROUS, HEAT TRANSMISSIVE, MOISTURE ABSORBENT BLANKETS, THEREBY FORMING A SANDWICH-LIKE STRUCTURE, APPLYING HEAT TO SAID BLANKETS TO EVAPORATE MOISTURE FROM SAID LEATHER TO DRY IT WHILE SIMULTANEOUSLY CONTINUOUSLY BENDING AND FLEXING SAID SANDWICH-LIKE STRUCTURE, COOLING SAID BLANKETS WHILE SIMULTANEOUSLY CONTINUOUSLY BENDING AND FLEXING SAID SANDWICH-LIKE STRUCTURE IN ORDER TO RESTORE MOISTURE TO THE SURFACE STRATA OF SAID LEATHER, AND REMOVING SAID LEATHER FROM SAID SANDWICH-LIKE STRUCTURE TO PRODUCE DRIED, FLEXIBLE AND SOFT LEATHER.
Claim 2
Dependent Claim
96 words
A PROCESS FOR DRYING AND FLEXING SOFT, PLIABLE LEATHERS COMPRISING THE STEPS OF INSERTING MOISTURE LADEN SOFT LEATHER BETWEEN A PAIR OF SUPERPOSED, POROUS, HEAT TRANSMISSIVE, MOISTURE ABSORBENT BLANKETS, THEREBY FORMING A SANDWICH-LIKE STRUCTURE, APPLYING HEAT TO SAID BLANKETS TO EVAPORATE MOISTURE FROM SAID LEATHER TO DRY IT WHILE SIMULTANEOUSLY CONTINUOUSLY BENDING AND FLEXING SAID SANDWICH-LIKE STRUCTURE, COOLING SAID BLANKETS WHILE SIMULTANEOUSLY CONTINUOUSLY BENDING AND FLEXING SAID SANDWICH-LIKE STRUCTURE IN ORDER TO RESTORE MOISTURE TO THE SURFACE STRATA OF SAID LEATHER, AND REMOVING SAID LEATHER FROM SAID SANDWICH-LIKE STRUCTURE TO PRODUCE DRIED, FLEXIBLE AND SOFT LEATHER.
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) | 1966-02-18 | 1966-08-20 | 1967-02-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-02-18 | 1970-08-20 | 1971-02-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-02-18 | 1974-08-20 | 1975-02-19 | $7700.00 | Window Closed / Lapsed |