Patent US2951431A successfully refreshed from Google Patents.
US2951431A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Percolator on coffee machines
Assignee: Individual
•
Filing: 1958-04-24
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Granted: 1960-09-06
•
Expires: 1978-04-24
Abstract
No abstract record available.
Inventors
- 👤 Hugentobler Max
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:06
CPC Classifications
A; A47; A47J; A47J31/00; A47J31/06; A47J31/0605
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US25890A
Cited
US512675A
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US748910A
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US1501165A
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US1613483A
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US1665199A
Cited
US2047134A
Cited
US2240721A
Cited
US2256717A
Cited
US2285930A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-06 | 1964-03-07 | 1964-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-06 | 1968-03-07 | 1968-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-06 | 1972-03-07 | 1972-09-06 | $7700.00 | Window Closed / Lapsed |