US3052532A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Casting slips for fabrication of refractory metal ware
Assignee: Individual
•
Filing: 1961-02-14
•
Granted: 1962-09-04
•
Expires: 1981-02-14
Abstract
No abstract record available.
Inventors
- 👤 Stephen D Stoddard
- 👤 Donald E Nuckolls
- 👤 Robert E Cowan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 00:00
CPC Classifications
B; B22; B22F; B22F3/00; B22F3/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
98 words
A COMPOSITION SUITABLE FOR SLIP CASTING ARTICLES OF TUNGSTEN METAL CONSISTING ESSENTIALLY OF THE SAID METAL IN FINELY DIVIDED FORM WITH AN AVERAGE PARTICLE SIZE IN THE RANGE OF 0.7 TO 1.3 MICRONS, AT LEAST ONE ORGANIC VEHICLE SELECTED FROM THE CLASS CONSISTING OF METHYL CHLOROFORM, 0-XYLENE, N-BUTYL ACETATE, ISOBUTYL ACETATE, AND 1,1,2,2 TETRACHLOROETHANE, AN ETHYL CELLULOSE SUSPENDING AGENT WITH THE APPROXIMATE RATIO OF SAID VEHICLE SAID METAL BEING 12 CC. OF A SOLUTION CONTAINING FROM 5 TO ABOUT 20 GRAMS OF SAID ETHYL CELLULOSE IN 400 CC. OF THE SAID ORGANIC VEHICLE PER 100 GRAMS OF METAL.
Claim 2
Dependent Claim
98 words
A COMPOSITION SUITABLE FOR SLIP CASTING ARTICLES OF TUNGSTEN METAL CONSISTING ESSENTIALLY OF THE SAID METAL IN FINELY DIVIDED FORM WITH AN AVERAGE PARTICLE SIZE IN THE RANGE OF 0.7 TO 1.3 MICRONS, AT LEAST ONE ORGANIC VEHICLE SELECTED FROM THE CLASS CONSISTING OF METHYL CHLOROFORM, 0-XYLENE, N-BUTYL ACETATE, ISOBUTYL ACETATE, AND 1,1,2,2 TETRACHLOROETHANE, AN ETHYL CELLULOSE SUSPENDING AGENT WITH THE APPROXIMATE RATIO OF SAID VEHICLE SAID METAL BEING 12 CC. OF A SOLUTION CONTAINING FROM 5 TO ABOUT 20 GRAMS OF SAID ETHYL CELLULOSE IN 400 CC. OF THE SAID ORGANIC VEHICLE PER 100 GRAMS OF METAL.
References Cited (Backward Citations)
US2082354A
Cited
US2979401A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-03 | 1966-03-05 | 1966-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-03 | 1970-03-05 | 1970-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-03 | 1974-03-05 | 1974-09-04 | $7700.00 | Window Closed / Lapsed |