Patent US3431332A successfully refreshed from Google Patents.
US3431332A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ceramic casting techniques
Assignee: Interface Inc
•
Filing: 1962-07-16
•
Granted: 1969-03-04
•
Expires: 1982-07-16
Abstract
No abstract record available.
Inventors
- 👤 Howard B Cummings
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:08
CPC Classifications
B; B28; B28B; B28B1/00; B28B1/26
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
A METHOD OF SLIP CASTING COMPRISING PROVIDING POROUS BODIES WHICH COOPERATE TO FORM A SUBSTANTIALLY CLOSED MOLD CAVITY, RENDERING APPROXIMATELY ONE-HALF OF THE SURFACES OF SAID CAVITY IMPERMEABLE AND KEEPING SAID CAVITY FILLED WITH A SLIP UNTIL THE CAVITY IS FILLED WITH A RELATIVELY SOLIDIFIED CAST MASS OF PARTICLES, SAID SLIP BEING CAST BY UNI-DIRECTIONAL SOLIDIFICATION PROCEEDING TOWARD SAID IMPERMEABLE SURFACES.
Claim 2
Independent Claim
61 words
A METHOD OF SLIP CASTING COMPRISING PROVIDING POROUS BODIES WHICH COOPERATE TO FORM A SUBSTANTIALLY CLOSED MOLD CAVITY, RENDERING APPROXIMATELY ONE-HALF OF THE SURFACES OF SAID CAVITY IMPERMEABLE AND KEEPING SAID CAVITY FILLED WITH A SLIP UNTIL THE CAVITY IS FILLED WITH A RELATIVELY SOLIDIFIED CAST MASS OF PARTICLES, SAID SLIP BEING CAST BY UNI-DIRECTIONAL SOLIDIFICATION PROCEEDING TOWARD SAID IMPERMEABLE SURFACES.
References Cited (Backward Citations)
US1337663A
Cited
US1415213A
Cited
US1564274A
Cited
US1534155A
Cited
US1733729A
Cited
US1679345A
Cited
US1692887A
Cited
US1891476A
Cited
US2288661A
Cited
US2534653A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-03 | 1972-09-02 | 1973-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-03 | 1976-09-02 | 1977-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-03 | 1980-09-02 | 1981-03-04 | $7700.00 | Window Closed / Lapsed |