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Patent US3500812A successfully refreshed from Google Patents.
US3500812A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Barbeque stove
Assignee: Individual
•
Filing: 1968-04-19
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Granted: 1970-03-17
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Expires: 1988-04-19
Abstract
No abstract record available.
Inventors
- 👤 Otto Korngold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 20:59
CPC Classifications
A; A47; A47J; A47J37/00; A47J37/06; A47J37/07; A47J37/0704
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US133231A
Cited
US2120683A
Cited
US2641243A
Cited
US2608190A
Cited
US3241545A
Cited
US3298361A
Cited
US3330266A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-03-16 | 1973-09-15 | 1974-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-03-16 | 1977-09-15 | 1978-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-03-16 | 1981-09-15 | 1982-03-17 | $7700.00 | Window Closed / Lapsed |