Patent DE187123C successfully refreshed from Google Patents.
US2879169A
Expired / Lapsed
US
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Mold dressing for casting non-ferrous metals
Assignee: Monsanto Chemicals Ltd
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Filing: 1955-04-21
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Granted: 1959-03-24
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Expires: 1975-04-21
Abstract
No abstract record available.
Inventors
- 👤 Teicher Harry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 02:25
CPC Classifications
B; B22; B22C; B22C3/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
77 words
AN IMPROVED TOOL- AND MOLD-DRESSING COMPOSITION CONSISTING OF A UNIFORM MIXTURE OF FORM ABOUT 95 TO ABOUT 80 PERCENT BY WEIGHT OF FINELY DIVIDED BONE ASH AND FROM ABOUT 5 TO ABOUT 20 PERCENT BY WEIGHT OF AN ACID PHOSPHATE SELECTED FROM THE GROUP CONSISTING OF PHOSPHORIC ACID, MONOCALCIUM ORTHOPHOSPHATE, MONOSODIUM ORTHOPHOSPHATE, MONOPOTASSIUM ORTHOPHOSPHATE, MONOSODIUM POTASSIUM ORTHOPHOSPHATE, AND MIXTURES THEREOF SUCH THAT AN AQUEOUS SLURRY OF SAID MIXTURE HAS A PH BETWEEN ABOUT 4 AND ABOUT 7.
Claim 2
Dependent Claim
77 words
AN IMPROVED TOOL- AND MOLD-DRESSING COMPOSITION CONSISTING OF A UNIFORM MIXTURE OF FORM ABOUT 95 TO ABOUT 80 PERCENT BY WEIGHT OF FINELY DIVIDED BONE ASH AND FROM ABOUT 5 TO ABOUT 20 PERCENT BY WEIGHT OF AN ACID PHOSPHATE SELECTED FROM THE GROUP CONSISTING OF PHOSPHORIC ACID, MONOCALCIUM ORTHOPHOSPHATE, MONOSODIUM ORTHOPHOSPHATE, MONOPOTASSIUM ORTHOPHOSPHATE, MONOSODIUM POTASSIUM ORTHOPHOSPHATE, AND MIXTURES THEREOF SUCH THAT AN AQUEOUS SLURRY OF SAID MIXTURE HAS A PH BETWEEN ABOUT 4 AND ABOUT 7.
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) | 1962-03-23 | 1962-09-22 | 1963-03-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-23 | 1966-09-22 | 1967-03-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-23 | 1970-09-22 | 1971-03-24 | $7700.00 | Window Closed / Lapsed |