US2541813A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Calorizing process
Assignee: General Electric Co
•
Filing: 1947-11-08
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Granted: 1951-02-13
•
Expires: 1967-11-08
Abstract
No abstract record available.
Inventors
- 👤 Wayne R Frisch
- 👤 James W Roy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 03:09
CPC Classifications
C; C23; C23C; C23C10/00; C23C10/28; C23C10/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
112 words
THE PROCESS OF PROTECTING METAL ARTICLES FROM OXIDATION WHICH COMPRISES APPLYING TO THE SURFACE OF THE ARTICLE A COATING OF A COMPOSITION COMPRISING A SUSPENSION OF FINELY-DIVIDED ALUMINUM IN A FUGITIVE LIQUID CARRIER MEDIUM COMPRISING A RESIN WHICH WILL DECOMPOSE AND EVAPORATE AT A TEMPERATURE BELOW 600* C., THE ALUMINUM COMPRISING A MAJOR PORTION BY WEIGHT OF SAID COMPSOTION, AND FIRING THE COATED ARTICLE AT A TEMPERATURE OF AT LEAST 600* C. TO DRIVE OFF THE SUSEPNSION MEDIUM AND ALLOY THE ALUMINUM WITH THE SURFACE METAL OF THE ARTICLE, SAID FINELYDIVIDED ALUMINUM CONSISTING OF FROM 65 TO 75 PER CENT GRANULAR ALUMINUM POWDER AND FROM 25 TO 35 PER CENT FLAKE ALUMINUM.
Claim 2
Dependent Claim
112 words
THE PROCESS OF PROTECTING METAL ARTICLES FROM OXIDATION WHICH COMPRISES APPLYING TO THE SURFACE OF THE ARTICLE A COATING OF A COMPOSITION COMPRISING A SUSPENSION OF FINELY-DIVIDED ALUMINUM IN A FUGITIVE LIQUID CARRIER MEDIUM COMPRISING A RESIN WHICH WILL DECOMPOSE AND EVAPORATE AT A TEMPERATURE BELOW 600* C., THE ALUMINUM COMPRISING A MAJOR PORTION BY WEIGHT OF SAID COMPSOTION, AND FIRING THE COATED ARTICLE AT A TEMPERATURE OF AT LEAST 600* C. TO DRIVE OFF THE SUSEPNSION MEDIUM AND ALLOY THE ALUMINUM WITH THE SURFACE METAL OF THE ARTICLE, SAID FINELYDIVIDED ALUMINUM CONSISTING OF FROM 65 TO 75 PER CENT GRANULAR ALUMINUM POWDER AND FROM 25 TO 35 PER CENT FLAKE ALUMINUM.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-02-12 | 1954-08-14 | 1955-02-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-02-12 | 1958-08-14 | 1959-02-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-02-12 | 1962-08-14 | 1963-02-13 | $7700.00 | Window Closed / Lapsed |