US2730282A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Suction bag device for spray dryer
Assignee: Commonwealth Engineering Company of Ohio
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Filing: 1952-11-24
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Granted: 1956-01-10
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Expires: 1972-11-24
Abstract
No abstract record available.
Inventors
- 👤 Frank E Bonner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 19:35
CPC Classifications
B; B01; B01D; B01D1/00; B01D1/16; B01D1/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-09 | 1959-07-11 | 1960-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-09 | 1963-07-11 | 1964-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-09 | 1967-07-11 | 1968-01-10 | $7700.00 | Window Closed / Lapsed |