Patent US3490123A successfully refreshed from Google Patents.
US3490123A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Protective aluminum foil cover for stoves
Assignee: HILDEGARDE C CLARK
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Filing: 1967-02-14
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Granted: 1970-01-20
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Expires: 1987-02-14
Abstract
No abstract record available.
Inventors
- 👤 Hildegarde C Clark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:37
CPC Classifications
F; F24; F24C; F24C15/00; F24C15/12; Y; Y10; Y10S; Y10S428/00; Y10S428/906; Y10T; Y10T428/00; Y10T428/12; Y10T428/12188; Y10T428/12194; Y10T428/12431; Y10T428/15
Claims Analysis
Total Claims: 0
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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) | 1973-01-19 | 1973-07-21 | 1974-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-19 | 1977-07-21 | 1978-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-19 | 1981-07-21 | 1982-01-20 | $7700.00 | Window Closed / Lapsed |