US2515090A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fractionating column
Assignee: Mo och Domsjo AB
•
Filing: 1947-03-26
•
Granted: 1950-07-11
•
Expires: 1967-03-26
Abstract
No abstract record available.
Inventors
- 👤 Linder Ake Vilhelm Bernhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:21
CPC Classifications
C; C11; C11C; C11C1/00; C11C1/08; C11C1/10; B; B01; B01D; B01D3/00; B01D3/14; B01D3/26; B01D3/28; C11D; C11D19/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US349449A
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US876678A
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US283025A
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US716380A
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FR438527A
Cited
US1042055A
Cited
US1826224A
Cited
GB337545A
Cited
US1997171A
Cited
US1987097A
Cited
US2012125A
Cited
US2143344A
Cited
US2176498A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-07-10 | 1954-01-09 | 1954-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-10 | 1958-01-09 | 1958-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-10 | 1962-01-09 | 1962-07-11 | $7700.00 | Window Closed / Lapsed |