US2853461A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ceramic binder comprising a nitrogen containing salt of a synthetic resin
Assignee: Wyeth Holdings LLC
•
Filing: 1953-03-13
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Granted: 1958-09-23
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Expires: 1973-03-13
Abstract
No abstract record available.
Inventors
- 👤 John J Padbury
- 👤 Sprague George Sidney
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:12
CPC Classifications
C; C04; C04B; C04B33/00; C04B33/02; C04B33/13; C04B33/1315
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
88 words
AN UNBURNT CERAMIC MATERIAL OF IMPROVED PLASTICITY POSSESSING A HIGH GREEN STRENGTH WHICH COMPRISES A MAJOR PORTION OF FINELY DIVIDED CERAMIC MATERIAL AND FROM ABOUT 1% TO ABOUT 5% BY WEIGHT BASED ON THE TOTAL WEIGHT OF THE MIXTURE OF A WATER-SOLUBLE, VOLATILIZABLE NITROGEN CONTAINING SALT OF A POLYMER SELECTED FROM THE GROUP CONSISTING OF HOMOPOLYMERS OF ACRYLIC ACID AND METHACRYLIC ACID AND COPOLYMERS OF MALEIC ANHYDRIDE, MALEIC ACID, FUMARIC ACID, ITACONIC ACID, ACONITIC ACID, ACRYLIC ACID AND METHACRYLIC ACID AND AT LEAST ONE OTHER MONOMER COPOLYMERIZABLE THEREWITH.
Claim 2
Dependent Claim
88 words
AN UNBURNT CERAMIC MATERIAL OF IMPROVED PLASTICITY POSSESSING A HIGH GREEN STRENGTH WHICH COMPRISES A MAJOR PORTION OF FINELY DIVIDED CERAMIC MATERIAL AND FROM ABOUT 1% TO ABOUT 5% BY WEIGHT BASED ON THE TOTAL WEIGHT OF THE MIXTURE OF A WATER-SOLUBLE, VOLATILIZABLE NITROGEN CONTAINING SALT OF A POLYMER SELECTED FROM THE GROUP CONSISTING OF HOMOPOLYMERS OF ACRYLIC ACID AND METHACRYLIC ACID AND COPOLYMERS OF MALEIC ANHYDRIDE, MALEIC ACID, FUMARIC ACID, ITACONIC ACID, ACONITIC ACID, ACRYLIC ACID AND METHACRYLIC ACID AND AT LEAST ONE OTHER MONOMER COPOLYMERIZABLE THEREWITH.
References Cited (Backward Citations)
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Cited
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Cited
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Cited
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Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-22 | 1962-03-24 | 1962-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-22 | 1966-03-24 | 1966-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-22 | 1970-03-24 | 1970-09-23 | $7700.00 | Window Closed / Lapsed |