Patent US3414384A successfully refreshed from Google Patents.
US3414384A
Expired / Lapsed
US
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Apparatus for purifying brine
Assignee: BASF Schweiz AG
•
Filing: 1965-09-27
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Granted: 1968-12-03
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Expires: 1985-09-27
Abstract
No abstract record available.
Inventors
- 👤 Goerg Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 05:37
CPC Classifications
C; C01; C01D; C01D3/00; C01D3/04; C01D3/06; C01D3/14; C01D3/16
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA588902A
Cited
GB189821284A
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US773222A
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US1906534A
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US2034685A
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US2793942A
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US2764472A
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US2932559A
Cited
AT220164B
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US3071450A
Cited
US3343919A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-03 | 1972-06-03 | 1972-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-03 | 1976-06-03 | 1976-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-03 | 1980-06-03 | 1980-12-03 | $7700.00 | Window Closed / Lapsed |