US2815071A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Horizontal spray drier
Assignee: Individual
•
Filing: 1953-09-18
•
Granted: 1957-12-03
•
Expires: 1973-09-18
Abstract
No abstract record available.
Inventors
- 👤 Roy O Henszey
- 👤 Richard R Henszey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:13
CPC Classifications
B; B01; B01D; B01D1/00; B01D1/16; B01D1/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1321362A
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GB190413186A
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US860929A
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US878977A
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US1829139A
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US1851807A
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US2456674A
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GB663121A
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GB680053A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-12-02 | 1961-06-03 | 1961-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-02 | 1965-06-03 | 1965-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-02 | 1969-06-03 | 1969-12-03 | $7700.00 | Window Closed / Lapsed |