Patent US2711966A successfully refreshed from Google Patents.
US2711966A
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Parting composition
Assignee: Lukens Steel Co
•
Filing: 1949-12-01
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Granted: 1955-06-28
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Expires: 1969-12-01
Abstract
No abstract record available.
Inventors
- 👤 Thomas T Watson
- 👤 Riggall Albert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:11
CPC Classifications
C; C21; C21D; C21D1/00; C21D1/68; Y; Y10; Y10S; Y10S29/00; Y10S29/038; Y10T; Y10T29/00; Y10T29/49; Y10T29/4981
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
113 words
A PARTING COMPOSITION ADAPTED FOR THE HOT PACKWORKING OF A PLURALITY OF METAL MEMBERS COMPRISING A HOMOGENEOUS SUSPENSION OF INORGANIC MATERIAL, WHICH IS SUBSTANTIALLY INJUSIBLE AND NON-DECOMPOSABLE AT THE HEIGH EST TEMPERATURE ENCOUNTERED DURING THE HOT WOEKING OPERATION, AND HAVING A PARTICLE SIZE SMALLER THAN 100 MESH, IN A SOLUTION OF A CELLULOSE ETHERS AND CELLULOSE ESTERS IN GROUP CONSISTING OF CELLULOSE ETHERS AND CELLULOSE ESTERS IN A VOLATILE ORGANIC NON-AROMATIC SOLVENT THEREFOR, THE CONCENTRATION OF SAID CELLULOSE DERIVATIVE IN SAID SOLVENT BEING BETWEEN ABOUT 0.04% AND ABOUT 4% BY WEIGHT, AND THE PROPORTION OF SAID INORGANIC MATERIAL TO SAID SOLUTION BEING ABOUT 3 VOLUMES OF THE FORMER PER VOLUME OF THE LATTER.
Claim 2
Dependent Claim
113 words
A PARTING COMPOSITION ADAPTED FOR THE HOT PACKWORKING OF A PLURALITY OF METAL MEMBERS COMPRISING A HOMOGENEOUS SUSPENSION OF INORGANIC MATERIAL, WHICH IS SUBSTANTIALLY INJUSIBLE AND NON-DECOMPOSABLE AT THE HEIGH EST TEMPERATURE ENCOUNTERED DURING THE HOT WOEKING OPERATION, AND HAVING A PARTICLE SIZE SMALLER THAN 100 MESH, IN A SOLUTION OF A CELLULOSE ETHERS AND CELLULOSE ESTERS IN GROUP CONSISTING OF CELLULOSE ETHERS AND CELLULOSE ESTERS IN A VOLATILE ORGANIC NON-AROMATIC SOLVENT THEREFOR, THE CONCENTRATION OF SAID CELLULOSE DERIVATIVE IN SAID SOLVENT BEING BETWEEN ABOUT 0.04% AND ABOUT 4% BY WEIGHT, AND THE PROPORTION OF SAID INORGANIC MATERIAL TO SAID SOLUTION BEING ABOUT 3 VOLUMES OF THE FORMER PER VOLUME OF THE LATTER.
References Cited (Backward Citations)
US321693A
Cited
US704285A
Cited
US2593460A
Cited
US1874785A
Cited
US1860532A
Cited
US1955547A
Cited
US2059088A
Cited
US2367375A
Cited
US2407146A
Cited
US2442864A
Cited
US2422429A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-06-27 | 1958-12-27 | 1959-06-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-06-27 | 1962-12-27 | 1963-06-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-06-27 | 1966-12-27 | 1967-06-28 | $7700.00 | Window Closed / Lapsed |