US3761293A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ceramic coating compositions for continuous cleaning surfaces
Assignee: HOMMEL CO O
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Filing: 1971-04-27
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Granted: 1973-09-25
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Expires: 1991-04-27
Abstract
Abstract THIS INVENTION RELATES TO COMPOSITIONS AND METHODS FOR FORMING AND APPLYING COMPOSITIONS WHICH BECOMES DURABLE ADHERENT CERAMIC DIRECT-ON COATINGS WITH CATALYTICALLY ACTIVE SURFACES AFTER FIRING AT ELEVATED TEMPERATURES. THE COATINGS ARE PREPARED FROM A BATCH COMPRISING A DEVITRIFABLE BASE, GLASS OR FRIT, A BARIUM YIELDING GLASS OR GLASS-FORMING COMPOUND SUCH AS LITHIUM-BARIUM-CALCIUMFLUOROBORATE AND EITHER AN OXIDE SUCH AS ANTIMONY OXIDE OR CERIUM OXIDE OR A METAL SUCH AS POLISHED ALUMINUM P POWDER.
Inventors
- 👤 G Carini
- 👤 E Hommel
- 👤 J Twigger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:01
CPC Classifications
C; C03; C03C; C03C4/00; B; B01; B01D; B01D53/00; B01D53/34; B01D53/92; B01D53/94; B01D53/944; B01J; B01J37/00; B01J37/02; B01J37/0215; C03C10/00; C03C10/16; C23; C23D; C23D5/00; B01J2235/00; B01J2235/15; B01J35/00; B01J35/30; B01J35/34; B01J35/70; C03C2205/00; C03C2205/04
Claims Analysis
Total Claims: 0
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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) | 1976-09-24 | 1977-03-26 | 1977-09-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-24 | 1981-03-26 | 1981-09-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-24 | 1985-03-26 | 1985-09-25 | $7700.00 | Window Closed / Lapsed |