US2730458A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of increasing the scaling resistance of metallic objects
Assignee: VER DENTSCHE METALLWERKE AG
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Filing: 1951-10-01
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Granted: 1956-01-10
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Expires: 1971-10-01
Abstract
No abstract record available.
Inventors
- 👤 Schulze Herbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:01
CPC Classifications
C; C22; C22C; C22C28/00; C09; C09D; C09D195/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
56 words
A METHOD OF IMPROVING THE SCALING RESISTANCE AT TEMPERATURE ABOVE 800* C. IN THE PRESENCE OF CORROSIVE GASES OF A METAL ARTICLE COATED WITH A SCALING RESISTANT CHROMIUM-AND-NICKEL CONTAINING ALLOY WHICH COMPRISES APPLYING TO SUCH COATED METAL ARTICLE A COATING OF A BITUMINOUS PAINT CONTAINING A MATERIAL SELECTED FROM THE GROUP CONSISTING OF CASI2 AND AL2CA.
Claim 2
Independent Claim
56 words
A METHOD OF IMPROVING THE SCALING RESISTANCE AT TEMPERATURE ABOVE 800* C. IN THE PRESENCE OF CORROSIVE GASES OF A METAL ARTICLE COATED WITH A SCALING RESISTANT CHROMIUM-AND-NICKEL CONTAINING ALLOY WHICH COMPRISES APPLYING TO SUCH COATED METAL ARTICLE A COATING OF A BITUMINOUS PAINT CONTAINING A MATERIAL SELECTED FROM THE GROUP CONSISTING OF CASI2 AND AL2CA.
References Cited (Backward Citations)
US2300400A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-09 | 1959-07-11 | 1960-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-09 | 1963-07-11 | 1964-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-09 | 1967-07-11 | 1968-01-10 | $7700.00 | Window Closed / Lapsed |