Patent US3547098A successfully refreshed from Google Patents.
US3547098A
Expired / Lapsed
US
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Porcelain enamels for self-cleaning cooking oven
Assignee: Vibrantz Corp
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Filing: 1968-03-22
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Granted: 1970-12-15
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Expires: 1988-03-22
Abstract
No abstract record available.
Inventors
- 👤 William S Lee
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 14:34
CPC Classifications
C; C03; C03C; C03C4/00; C03C8/00; C03C8/02; C03C8/04; C03C8/08; C03C8/10; C03C8/12; C23; C23D; C23D5/00; F; F24; F24C; F24C15/00; F24C15/005; C03C2205/00; C03C2205/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-12-14 | 1974-06-15 | 1974-12-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-14 | 1978-06-15 | 1978-12-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-14 | 1982-06-15 | 1982-12-15 | $7700.00 | Window Closed / Lapsed |