Patent US2823640A successfully refreshed from Google Patents.
US2823640A
Expired / Lapsed
US
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Apparatus for applying liquid to, and drying, metal stock
Assignee: Individual
•
Filing: 1955-06-22
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Granted: 1958-02-18
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Expires: 1975-06-22
Abstract
No abstract record available.
Inventors
- 👤 Roland A Whitbeck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:04
CPC Classifications
B; B05; B05B; B05B16/00; B05B16/90; B05B16/95; B05B16/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1785762A
Cited
US2033044A
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US2159297A
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US2006849A
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US2133214A
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US2135601A
Cited
US2311616A
Cited
US2517024A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-02-17 | 1961-08-19 | 1962-02-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-02-17 | 1965-08-19 | 1966-02-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-02-17 | 1969-08-19 | 1970-02-18 | $7700.00 | Window Closed / Lapsed |