US3152893A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preventing oxidation of hot worked parts
Assignee: Alloys Research and Manufacturing Corp
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Filing: 1962-02-23
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Granted: 1964-10-13
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Expires: 1982-02-23
Abstract
No abstract record available.
Inventors
- 👤 Storchheim Samuel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:06
CPC Classifications
B; B22; B22F; B22F3/00; B22F3/24; B22F3/26; C; C21; C21D; C21D1/00; C21D1/68; C22; C22F; C22F1/00; C22F1/008
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
67 words
THE METHOD OF HOT WORKING METALS COMPRISING THE STEPS OF FORMING A COHERENT BODY OF OXIDATION SENSITIVE MATERIALS, COATIG AT LEAST THE SURFACE OF SAID BODY WITH A HYDROCARBON COMPOUND, PREHEATING SAID COATED BODY TO A HOT WORKING TEMPERATUE, SAID COMPOUND HAVING THE PROPERTY OF EVOLVING A PROTECTIVE ATMOSPHERE AT SAID HOT WORKING TEMPERATURE AND HOT WORKING SAID PREHEATED BODY WHILE SAID PROTECTIVE ATMOSPHERE IS BEING EVOLVED.
Claim 2
Independent Claim
67 words
THE METHOD OF HOT WORKING METALS COMPRISING THE STEPS OF FORMING A COHERENT BODY OF OXIDATION SENSITIVE MATERIALS, COATIG AT LEAST THE SURFACE OF SAID BODY WITH A HYDROCARBON COMPOUND, PREHEATING SAID COATED BODY TO A HOT WORKING TEMPERATUE, SAID COMPOUND HAVING THE PROPERTY OF EVOLVING A PROTECTIVE ATMOSPHERE AT SAID HOT WORKING TEMPERATURE AND HOT WORKING SAID PREHEATED BODY WHILE SAID PROTECTIVE ATMOSPHERE IS BEING EVOLVED.
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) | 1967-10-13 | 1968-04-13 | 1968-10-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-10-13 | 1972-04-13 | 1972-10-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-10-13 | 1976-04-13 | 1976-10-13 | $7700.00 | Window Closed / Lapsed |