US3002855A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and composition for combating slag formation on refractory surfaces
Assignee: ChampionX LLC
•
Filing: 1957-02-01
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Granted: 1961-10-03
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Expires: 1977-02-01
Abstract
No abstract record available.
Inventors
- 👤 James H Phillips
- 👤 Donald R Anderson
- 👤 Franz P Manlik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:20
CPC Classifications
C; C04; C04B; C04B41/00; C04B41/009; C04B41/45; C04B41/50; C04B41/5025; C04B41/5031; C04B41/80; C04B41/81; C04B41/85; C04B41/87; C04B2111/00; C04B2111/00474; C04B2111/0087
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
THE METHOD FOR COMBATING SLAG FORMATION ON REFRACTORY SURFACES EXPOSED TO HOT GASES FROM WHICH SLAGFORMING MATERIALS DEPOSITE THEREON, WHICH COMPRISES PROVIDING ON SAID SURFACES A COAT OF A COMPOSITION CONTAINING 1 PART BY WEIGHT OF A NON-SLAGGING SALT OF A METAL OF THE GROUP CONSISTING OF CHROMIUM AND ALUMINUM, AND 3-10 PARTS BY WEIGHT OF ALUMINUM OXIDE, AND CONTACTING THE COATED REFRACTORY SURFACES WITH SAID HOT GASES FROM WHICH SLAG-FORMING MATERIALS DEPOSIT.
Claim 2
Independent Claim
73 words
THE METHOD FOR COMBATING SLAG FORMATION ON REFRACTORY SURFACES EXPOSED TO HOT GASES FROM WHICH SLAGFORMING MATERIALS DEPOSITE THEREON, WHICH COMPRISES PROVIDING ON SAID SURFACES A COAT OF A COMPOSITION CONTAINING 1 PART BY WEIGHT OF A NON-SLAGGING SALT OF A METAL OF THE GROUP CONSISTING OF CHROMIUM AND ALUMINUM, AND 3-10 PARTS BY WEIGHT OF ALUMINUM OXIDE, AND CONTACTING THE COATED REFRACTORY SURFACES WITH SAID HOT GASES FROM WHICH SLAG-FORMING MATERIALS DEPOSIT.
References Cited (Backward Citations)
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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) | 1964-10-02 | 1965-04-03 | 1965-10-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-10-02 | 1969-04-03 | 1969-10-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-10-02 | 1973-04-03 | 1973-10-03 | $7700.00 | Window Closed / Lapsed |