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US2674249A
Expired / Lapsed
US
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Air flow controller for dishwashing and drying machines
Assignee: General Electric Co
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Filing: 1951-05-21
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Granted: 1954-04-06
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Expires: 1971-05-21
Abstract
No abstract record available.
Inventors
- 👤 James L Knight
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:40
CPC Classifications
A; A47; A47L; A47L15/00; A47L15/42; A47L15/48; A47L15/486
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1431213A
Cited
US1656139A
Cited
US2157112A
Cited
US2212560A
Cited
US2422022A
Cited
GB597487A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-05 | 1957-10-05 | 1958-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-05 | 1961-10-05 | 1962-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-05 | 1965-10-05 | 1966-04-06 | $7700.00 | Window Closed / Lapsed |