US2618530A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mold coating
Assignee: Alcoa Corp
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Filing: 1949-06-18
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Granted: 1952-11-18
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Expires: 1969-06-18
Abstract
No abstract record available.
Inventors
- 👤 George R Gardner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 14:30
CPC Classifications
B; B22; B22C; B22C3/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
A MOLD WASH CONSISTING ESSENTIALLY OF AN INSULATING MATERIAL, A VAPORIZABLE VEHICLE, A SUBSTANCE FROM THE GROUP CONSISTING OF SOLUBLE METAL TETRABORATES AND ORTHOBORIC ACID AND A SUBSTANCE FROM THE GROUP CONSISTING OF SOLUBLE METAL METAAND ORTHOPHOSPHATES AND ORTHOPHOSPHORIC ACID WHERE THE SAID TETRABORATES ARE EMPLOYED AND A SUBSTANCE FROM THE GROUP CONSISTING OF SOLUBLE METAL META-,PYRO- AND ORTHOPHOSPHATES WHERE ORTHOBORIC ACID IS EMPLOYED, THE PROPORTIONS OF THE BORON AND PHOSPHORUS-CONTAINING COMPOUNDS BEING SUCH THAT WHEN THE SAID VEHICLE IS EVAPORATED A NON-CRYSTALLINE GLASSY RESIDUE REMAINS.
Claim 2
Dependent Claim
86 words
A MOLD WASH CONSISTING ESSENTIALLY OF AN INSULATING MATERIAL, A VAPORIZABLE VEHICLE, A SUBSTANCE FROM THE GROUP CONSISTING OF SOLUBLE METAL TETRABORATES AND ORTHOBORIC ACID AND A SUBSTANCE FROM THE GROUP CONSISTING OF SOLUBLE METAL METAAND ORTHOPHOSPHATES AND ORTHOPHOSPHORIC ACID WHERE THE SAID TETRABORATES ARE EMPLOYED AND A SUBSTANCE FROM THE GROUP CONSISTING OF SOLUBLE METAL META-,PYRO- AND ORTHOPHOSPHATES WHERE ORTHOBORIC ACID IS EMPLOYED, THE PROPORTIONS OF THE BORON AND PHOSPHORUS-CONTAINING COMPOUNDS BEING SUCH THAT WHEN THE SAID VEHICLE IS EVAPORATED A NON-CRYSTALLINE GLASSY RESIDUE REMAINS.
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) | 1955-11-18 | 1956-05-19 | 1956-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-11-18 | 1960-05-19 | 1960-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-11-18 | 1964-05-19 | 1964-11-18 | $7700.00 | Window Closed / Lapsed |