Patent US2607664A successfully refreshed from Google Patents.
US2607664A
Expired / Lapsed
US
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Undistorted negative patterns of animal hides
Assignee: Union Carbide Corp
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Filing: 1950-04-13
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Granted: 1952-08-19
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Expires: 1970-04-13
Abstract
No abstract record available.
Inventors
- 👤 Nissel Frank Ralph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 10:21
CPC Classifications
B; B44; B44F; B44F9/00; B44F9/12; Y; Y10; Y10T; Y10T428/00; Y10T428/4935
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
IN THE PROCESS OF MAKING A NEGATIVE IMPRESSION IN A MATRIX BLANK BY MEANS OF A PATTERN MATERIAL COMPOSED OF AN ANIMAL HIDE, THE IMPROVEMENT WHICH COMPRISES IMPREGNATING SAID HIDE WITH A HEAT-HARDENABLE RESIN CAPABLE OF IMPARTING RIGIDITY AND HARDNESS TO SAID HIDE, CLEANING THE SURFACE OF SAID HIDE OF ANY EXCESS IMPREGNANT, HARDENING SAID RESIN BY THE APPLICATION OF HEAT THERETO TO CAUSE SAID HIDE TO BECOME HARD AND INFLEXIBLE, AND THEREAFTER IMPRESSING SAID MATRIX WITH THE RESIN-HARDENED HIDE.
Claim 2
Dependent Claim
80 words
IN THE PROCESS OF MAKING A NEGATIVE IMPRESSION IN A MATRIX BLANK BY MEANS OF A PATTERN MATERIAL COMPOSED OF AN ANIMAL HIDE, THE IMPROVEMENT WHICH COMPRISES IMPREGNATING SAID HIDE WITH A HEAT-HARDENABLE RESIN CAPABLE OF IMPARTING RIGIDITY AND HARDNESS TO SAID HIDE, CLEANING THE SURFACE OF SAID HIDE OF ANY EXCESS IMPREGNANT, HARDENING SAID RESIN BY THE APPLICATION OF HEAT THERETO TO CAUSE SAID HIDE TO BECOME HARD AND INFLEXIBLE, AND THEREAFTER IMPRESSING SAID MATRIX WITH THE RESIN-HARDENED HIDE.
References Cited (Backward Citations)
US1930158A
Cited
US2255335A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-08-19 | 1956-02-18 | 1956-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-08-19 | 1960-02-18 | 1960-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-08-19 | 1964-02-18 | 1964-08-19 | $7700.00 | Window Closed / Lapsed |