US3048495A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Temporary oxidation-preventive coating for metal
Assignee: Standard Oil Co
•
Filing: 1959-07-02
•
Granted: 1962-08-07
•
Expires: 1979-07-02
Abstract
No abstract record available.
Inventors
- 👤 John J Petkus
- 👤 James F Wygant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:26
CPC Classifications
C; C22; C22F; C22F1/00; C22F1/008; C23; C23D; C23D3/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
60 words
THE METHOD OF PROTECTING METAL SURFACES FROM OXIDATION DURING EXPOSURE TO ELEVATE TEMPERATURES WHICH COMPRISES APPLYING TO SAID SURFACES A COMPOSITION CONSISTING ESSENTIALLY OF A PLASTIC CLAY AND FROM ABOUT 1 TO ABOUT 100 PARTS OF BORIC ACID PER PART OF SAID CLAY, SAID COMPOSITION BEING CHARACTERIZED BY ITS WATER SOLUBILITY AFTER EXPOSURE AT TEMPERATURE IN EXCESS OF 1100* F.
Claim 2
Independent Claim
60 words
THE METHOD OF PROTECTING METAL SURFACES FROM OXIDATION DURING EXPOSURE TO ELEVATE TEMPERATURES WHICH COMPRISES APPLYING TO SAID SURFACES A COMPOSITION CONSISTING ESSENTIALLY OF A PLASTIC CLAY AND FROM ABOUT 1 TO ABOUT 100 PARTS OF BORIC ACID PER PART OF SAID CLAY, SAID COMPOSITION BEING CHARACTERIZED BY ITS WATER SOLUBILITY AFTER EXPOSURE AT TEMPERATURE IN EXCESS OF 1100* F.
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-08-06 | 1966-02-05 | 1966-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-06 | 1970-02-05 | 1970-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-06 | 1974-02-05 | 1974-08-07 | $7700.00 | Window Closed / Lapsed |