Patent US2027410A successfully refreshed from Google Patents.
US2027410A
Expired / Lapsed
US
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Fluid contacting apparatus
Assignee: Atlantic Richfield Co
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Filing: 1932-05-24
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Granted: 1936-01-14
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Expires: 1952-05-24
Abstract
No abstract record available.
Inventors
- 👤 Horace M Weir
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 09:41
CPC Classifications
B; B01; B01D; B01D24/00; B01D24/46; B01D24/4668; B01D24/4689; B01D24/02; B01D24/10; B01D24/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1939-01-13 | 1939-07-15 | 1940-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-01-13 | 1943-07-15 | 1944-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-01-13 | 1947-07-15 | 1948-01-14 | $7700.00 | Window Closed / Lapsed |