US3330892A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Molding comminuted nonplastic inorganic material
Assignee: Corning Glass Works
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Filing: 1964-07-24
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Granted: 1967-07-11
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Expires: 1984-07-24
Abstract
No abstract record available.
Inventors
- 👤 Eldor R Herrmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:45
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/622; C04B35/626; C04B35/63; C04B35/632; C04B35/634; C04B35/63404; C04B35/63416; C04B33/00; C04B33/02; C04B33/13; C04B33/1315; C04B33/28; C04B33/30; C04B35/63424; C04B35/63448; C04B35/63488; C04B35/63492
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
67 words
THE PROCESS OF MAKING SINTERED ARTICLES FROM COMMINUTED NONPLASTIC INORGANIC MATERIAL COMPRISING THE STEPS OF: (A) PREPARING A MOLDING BATCH MIXTURE CONSISTING OF (1) COMMINUTED NONPLASTIC INORGANIC MATERIAL AS A MAJOR COMPONENT BY WEIGHT THEREOF, (2) A MELTED ORGANIC VEHICLE THAT IS SOLID AT NORMAL ROOM TEMPERATURE AND PRESSURE, SAID VEHICLE HAVING A MELTING POINT BELOW ABOUT 200*C. AND HAVING A VAPOR PRESSURE OF AT LEAST ABOUT
Claim 2
Dependent Claim
67 words
THE PROCESS OF MAKING SINTERED ARTICLES FROM COMMINUTED NONPLASTIC INORGANIC MATERIAL COMPRISING THE STEPS OF: (A) PREPARING A MOLDING BATCH MIXTURE CONSISTING OF (1) COMMINUTED NONPLASTIC INORGANIC MATERIAL AS A MAJOR COMPONENT BY WEIGHT THEREOF, (2) A MELTED ORGANIC VEHICLE THAT IS SOLID AT NORMAL ROOM TEMPERATURE AND PRESSURE, SAID VEHICLE HAVING A MELTING POINT BELOW ABOUT 200*C. AND HAVING A VAPOR PRESSURE OF AT LEAST ABOUT
Claim 3
Dependent Claim
163 words
MM. OF HG AT THE MELTING POINT OF SAID VEHICLE UNDER AMBIENT ATMOSPHERE PRESSURE OF SUBSTANTIALLY ONE ATMOSPHERE, AND (3) AN ORGANIC DEFLOCCULANT SUBSTANTIALLY SOLUBLE IN SAID MELTED VEHICLE AND SUBSTANTIALLY FREE OF WATER SELECTED FROM THE GROUP CONSISTING OF (A) SURFACTANTS HAVING SUBSTANTIAL SOLUBILITY IN SAID VEHICLE AND BEING SUBSTANTIALLY FREE OF WATER, (B) ALIPHATIC MONOCARBOXYLIC ACIDS CONTAINING AT LEAST THREE CARBON ATOMS, (C) ESTERS OF ALIPHATIC MONOCARBOXYLIC ACIDS CONTAINING AT LEAST THREE CARBON ATOMS ON EACH OF THE ACID AND THE ALCOHOL RADICALS, (D) AMIDES OF ALIPHATIC MONOCARBOXYLIC ACIDS CONTAINING AT LEAST THREE CARBON ATOMS, AND (E) SALTS OF ALIPHATIC MONOCARBOXYLIC ACIDS CONTAINING AT LEAST CARBON ATOMS, (B) MOLDING SAID MIXTURE WHILE SAID VEHICLE REMAINS MELTED TO DESIRED SHAPE, (C) COOLING SAID MOLDING MIXTURE TO SOLIDIFY SAID VEHICLE AND HARDEN THE MIXTURE INTO A RIGIDIFIED GREEN BODY, (D) SUBLIMING SAID VEHICLE FROM SAID GREEN BODY, AND (E) FIRING SAID GREEN BODY TO SINTER THE NONPLASTIC INORGANIC MATERIAL INTO A COHERENT BODY.
Claim 4
Dependent Claim
163 words
MM. OF HG AT THE MELTING POINT OF SAID VEHICLE UNDER AMBIENT ATMOSPHERE PRESSURE OF SUBSTANTIALLY ONE ATMOSPHERE, AND (3) AN ORGANIC DEFLOCCULANT SUBSTANTIALLY SOLUBLE IN SAID MELTED VEHICLE AND SUBSTANTIALLY FREE OF WATER SELECTED FROM THE GROUP CONSISTING OF (A) SURFACTANTS HAVING SUBSTANTIAL SOLUBILITY IN SAID VEHICLE AND BEING SUBSTANTIALLY FREE OF WATER, (B) ALIPHATIC MONOCARBOXYLIC ACIDS CONTAINING AT LEAST THREE CARBON ATOMS, (C) ESTERS OF ALIPHATIC MONOCARBOXYLIC ACIDS CONTAINING AT LEAST THREE CARBON ATOMS ON EACH OF THE ACID AND THE ALCOHOL RADICALS, (D) AMIDES OF ALIPHATIC MONOCARBOXYLIC ACIDS CONTAINING AT LEAST THREE CARBON ATOMS, AND (E) SALTS OF ALIPHATIC MONOCARBOXYLIC ACIDS CONTAINING AT LEAST CARBON ATOMS, (B) MOLDING SAID MIXTURE WHILE SAID VEHICLE REMAINS MELTED TO DESIRED SHAPE, (C) COOLING SAID MOLDING MIXTURE TO SOLIDIFY SAID VEHICLE AND HARDEN THE MIXTURE INTO A RIGIDIFIED GREEN BODY, (D) SUBLIMING SAID VEHICLE FROM SAID GREEN BODY, AND (E) FIRING SAID GREEN BODY TO SINTER THE NONPLASTIC INORGANIC MATERIAL INTO A COHERENT BODY.
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) | 1970-07-10 | 1971-01-09 | 1971-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-10 | 1975-01-09 | 1975-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-10 | 1979-01-09 | 1979-07-11 | $7700.00 | Window Closed / Lapsed |