US3567666A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Separation means
Assignee: Individual
•
Filing: 1968-02-02
•
Granted: 1971-03-02
•
Expires: 1988-02-02
Abstract
Abstract THIS INVENTION RELATES TO A NOVEL COMPOSITE PRODUCT WHICH IS EMPLOYED AS A SEPARATION MEANS IN REVERSE OSMOSIS, GAS MIXTURES AND GALVANIC DEVICES. THE EFFICIENT SEPARATION MODE IS A RESULT OF THE CHANNEL STRUCTURE OF THE POLYMER COUPLED WITH THE UNIFORM POROSITY OF THE PARTICULATE WITHIN THE POLYER.
Inventors
- 👤 Carl Berger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:52
CPC Classifications
B; B01; B01D; B01D69/00; B01D69/14; B01D69/141; B01D69/1411; C; C08; C08K; C08K3/00; C08K3/01; C08K3/013; C08K7/00; C08K7/22; C08K7/24; C08L; C08L71/00; C08L71/08; C08L71/10; C08L71/12; C08L71/123; C08L81/00; C08L81/06
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) | 1974-03-01 | 1974-08-31 | 1975-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-01 | 1978-08-31 | 1979-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-01 | 1982-08-31 | 1983-03-02 | $7700.00 | Window Closed / Lapsed |