US3421628A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for processing a solution by reverse osmosis
Assignee: FABRICATION D'ELEMENTS CATALYTIQUES (SFEC) Ste
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Filing: 1966-12-15
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Granted: 1969-01-14
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Expires: 1986-12-15
Abstract
No abstract record available.
Inventors
- 👤 Jean-Louis Barnabe
- 👤 Dominique Callies
- 👤 Jean-Claude Cornier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:42
CPC Classifications
B; B01; B01D; B01D63/00; B01D63/08; B01D63/082; B01D63/084; B01D61/00; B01D61/02; B01D61/08; C; C02; C02F; C02F1/00; C02F1/001; C02F1/002; B01D2313/00; B01D2313/24; B01D2313/243; C02F1/44; C02F1/441; C02F2103/00; C02F2103/08; Y; Y02; Y02A; Y02A20/00; Y02A20/124; Y02A20/131
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US718358A
Cited
US2353760A
Cited
US2473986A
Cited
US2526656A
Cited
US3344926A
Cited
US3365061A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-14 | 1972-07-15 | 1973-01-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-14 | 1976-07-15 | 1977-01-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-14 | 1980-07-15 | 1981-01-14 | $7700.00 | Window Closed / Lapsed |