US2510233A
Expired / Lapsed
US
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Apparatus for evaporating viscous liquids
Assignee: Blaw Knox Co
•
Filing: 1944-03-06
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Granted: 1950-06-06
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Expires: 1964-03-06
Abstract
No abstract record available.
Inventors
- 👤 Martin J Kermer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:57
CPC Classifications
B; B01; B01D; B01D3/00; B01D3/06; B01D3/065; B01D1/00; B01D1/26
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) | 1953-06-05 | 1953-12-05 | 1954-06-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-06-05 | 1957-12-05 | 1958-06-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-06-05 | 1961-12-05 | 1962-06-06 | $7700.00 | Window Closed / Lapsed |