Patent FR582275A successfully refreshed from Google Patents.
US3386583A
Expired / Lapsed
US
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Reverse osmosis membrane module
Assignee: Gulf General Atomic Inc
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Filing: 1965-06-11
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Granted: 1968-06-04
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Expires: 1985-06-11
Abstract
No abstract record available.
Inventors
- 👤 Merten Ulrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 00:18
CPC Classifications
B; B01; B01D; B01D63/00; B01D63/10; B01D63/101; Y; Y02; Y02A; Y02A20/00; Y02A20/124; Y02A20/131; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/496; Y10T29/49604
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) | 1971-06-04 | 1971-12-04 | 1972-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-06-04 | 1975-12-04 | 1976-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-06-04 | 1979-12-04 | 1980-06-04 | $7700.00 | Window Closed / Lapsed |