US2843500A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coated alloys
Assignee: Individual
•
Filing: 1956-01-27
•
Granted: 1958-07-15
•
Expires: 1976-01-27
Abstract
No abstract record available.
Inventors
- 👤 Cameron G Harman
- 👤 Loran S O'bannon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 07:16
CPC Classifications
C; C03; C03C; C03C8/00; C23; C23D; C23D5/00
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
68 words
A STRUCTURAL MATERIAL CONSISTING OF A BASE OF METAL THE PREDOMINANT AMOUNT OF WHICH IS METAL SELECTED FROM THE GROUP CONSISTING OF IRON, COBALT, NICKEL, AND ANY MIXTURES THEREOF AND A COATING OF GLASS FIRMLY BONDED THERETO SAID GLASS CONSISTING OF FROM 0.3 TO 0.7 MOLE OF AN ALKALI METAL OXIDE, FROM 0.3 TO 0.7 MOLE OF STRONTIUM OXIDE, AND FROM 1 TO 2.5 MOLES OF SILICON OXIDE.
Claim 2
Dependent Claim
68 words
A STRUCTURAL MATERIAL CONSISTING OF A BASE OF METAL THE PREDOMINANT AMOUNT OF WHICH IS METAL SELECTED FROM THE GROUP CONSISTING OF IRON, COBALT, NICKEL, AND ANY MIXTURES THEREOF AND A COATING OF GLASS FIRMLY BONDED THERETO SAID GLASS CONSISTING OF FROM 0.3 TO 0.7 MOLE OF AN ALKALI METAL OXIDE, FROM 0.3 TO 0.7 MOLE OF STRONTIUM OXIDE, AND FROM 1 TO 2.5 MOLES OF SILICON OXIDE.
Claim 3
Independent Claim
89 words
A METHOD OF PREPARAING A NOVEL STRUCTURAL MATERIAL CONSISTING OF APPLYING A POWDERED MIXTURE OF FROM 0.3 TO 0.7 MOLE OF ALKALI METAL OXIDE, FROM 0.3 TO 0.7 MOLE OF STRONTIUM OXIDE AND FROM 1 TO 2.5 MOLES OF SILICON OXIDE TO THE SURFACE OF A BASE OF A METAL THE PREDOMINANT AMOUNT OF WHICH IS METAL SELECTED FROM THE GROUP CONSISTING OF IRON, COBALT, NICKEL, AND ANY MIXTURES THEREOF, AND FIRING THE THUS-COATED BASE FOR FROM 5 TO 10 MINUTES AT A TEMPERATURE OF BETWEEN 980* AND 1235*C.
Claim 4
Independent Claim
89 words
A METHOD OF PREPARAING A NOVEL STRUCTURAL MATERIAL CONSISTING OF APPLYING A POWDERED MIXTURE OF FROM 0.3 TO 0.7 MOLE OF ALKALI METAL OXIDE, FROM 0.3 TO 0.7 MOLE OF STRONTIUM OXIDE AND FROM 1 TO 2.5 MOLES OF SILICON OXIDE TO THE SURFACE OF A BASE OF A METAL THE PREDOMINANT AMOUNT OF WHICH IS METAL SELECTED FROM THE GROUP CONSISTING OF IRON, COBALT, NICKEL, AND ANY MIXTURES THEREOF, AND FIRING THE THUS-COATED BASE FOR FROM 5 TO 10 MINUTES AT A TEMPERATURE OF BETWEEN 980* AND 1235*C.
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) | 1961-07-14 | 1962-01-13 | 1962-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-14 | 1966-01-13 | 1966-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-14 | 1970-01-13 | 1970-07-15 | $7700.00 | Window Closed / Lapsed |