US2941897A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Manufacture of ceramic articles
Assignee: Mansfield Sanitary Pottery Co
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Filing: 1956-09-13
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Granted: 1960-06-21
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Expires: 1976-09-13
Abstract
No abstract record available.
Inventors
- 👤 Gerald A Keitel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:21
CPC Classifications
C; C04; C04B; C04B41/00; C04B41/009; C04B41/45; C04B41/52; C04B41/80; C04B41/81; C04B41/89; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
64 words
THE METHOD OF FINISHING CERAMIC WARE WHICH COMPRISES THE STEPS OF COATING A SURFACE PORTION OF A CERAMIC ARTICLE WITH GRAPHITE OF PARTICLE SIZE LESS THAN ABOUT 12 MICRONS, ELECTROSTATICALLY SPRAYING OVERGLAZE ON THE GRAPHITE-COATED SURFACE PORTION, AND FIRING THE ARTICLE AT APPROXIMATELY THE MATURING TEMPERATURE OF THE OVERGLAZE AND THEREBY ELIMINATING ALL VISIBLE TRACES OF THE COATING AND FORMING A SMOOTH GLAZE SURFACE.
Claim 2
Independent Claim
64 words
THE METHOD OF FINISHING CERAMIC WARE WHICH COMPRISES THE STEPS OF COATING A SURFACE PORTION OF A CERAMIC ARTICLE WITH GRAPHITE OF PARTICLE SIZE LESS THAN ABOUT 12 MICRONS, ELECTROSTATICALLY SPRAYING OVERGLAZE ON THE GRAPHITE-COATED SURFACE PORTION, AND FIRING THE ARTICLE AT APPROXIMATELY THE MATURING TEMPERATURE OF THE OVERGLAZE AND THEREBY ELIMINATING ALL VISIBLE TRACES OF THE COATING AND FORMING A SMOOTH GLAZE SURFACE.
References Cited (Backward Citations)
US1570137A
Cited
US1959149A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-06-21 | 1963-12-21 | 1964-06-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-21 | 1967-12-21 | 1968-06-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-21 | 1971-12-21 | 1972-06-21 | $7700.00 | Window Closed / Lapsed |