Patent US2940439A successfully refreshed from Google Patents.
US2940439A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Portable grill
Assignee: Individual
•
Filing: 1957-09-27
•
Granted: 1960-06-14
•
Expires: 1977-09-27
Abstract
No abstract record available.
Inventors
- 👤 Bartels Russell
- 👤 Clarence E Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:02
CPC Classifications
A; A47; A47J; A47J33/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US21157A
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US89223A
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US168809A
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US750190A
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US747475A
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US1130689A
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US1423612A
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US2280131A
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US2538440A
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US2767003A
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US2528536A
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US2844139A
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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) | 1963-06-14 | 1963-12-14 | 1964-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-06-14 | 1967-12-14 | 1968-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-06-14 | 1971-12-14 | 1972-06-14 | $7700.00 | Window Closed / Lapsed |