Patent US4439265A successfully refreshed from Google Patents.
Patent US2835633A successfully refreshed from Google Patents.
US2835633A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for producing chemical
Assignee: —
•
Filing: —
•
Granted: 1958-05-20
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Expires: 1975-05-20
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 09:29
CPC Classifications
B; B01; B01D; B01D61/00; B01D61/42; B01D61/44; B01D61/46; B01D61/50; C; C25; C25B; C25B3/00; C25B3/20; C25B3/23; B01J; B01J2219/00; B01J2219/08; B01J2219/0873; B01J2219/0877
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
224 words
AN APPARATUS FOR PRODUCING IONIC COMPOUNDS IN SOLUTION BY ION TRANSFER UNDER THE INFLUENCE OF AN ELECTRIC CURRENT, PARTICULARLY FOR PRODUCING A PRODUCT COMPOUND FROM SOURCE COMPOUNDS OF A DIFFERENT CHEMICAL COMPOSITION THAN THE PRODUCT COMPOUND, THE APPARATUS COMPRISING MEANS FORMING A PLURALITY OF LIQUID CHAMBERS, SAID CHAMBERS INCLUDING TERMINAL ELECTRODE CHAMBERS, AND INTERMEDIATE CHAMBERS LYING BETWEN SAID TERMINAL CHAMBERS; ELECTRODES IN SAID TERMINAL CHAMBERS; LIQUID SEPARATING ION-PASSAGE-DISCRIMINATING MEMBRANES BETWEEN SAID CHAMBERS FOR ESTABLISHING SELECTIVELY RESTRICTED PATHS FOR IONS FROM CHAMBER TO CHAMBER, ALTERNATING MEMBRANES BEING PERMEABLE TO IONS OF ONE SIGN, THE REMAINAING MEMBRANES LYING BETWEEN SAID ALTERNATING MEMBRANES BEING PERMEABLE TO IONS OF THE OPPOSITE SIGN AND PASSAGE RESISTANT TO IONS OF THE ONE SIGN; MEANS FOR SUPPLYING LIQUID TO SAID INTERMEDIATE CHAMBERS, SAID MEANS INCLUDING FOUR DUCTS, THE FIRST DUCT BEING MANIFOLDED TO SUPPLY A CERTAIN CHAMBER AND EVERY FOURTH CHAMBER COUNTING FROM, BUT NOT INCLUDING, SAID CERTAIN CHAMBER, THE SECOND DUCT BEING MANIFOLDED TO SUPPLY THE CHAMBER NEXT TO SAID CERTAIN CHAMBER AND EVERY FOURTH CHAMBER COUNTING FROM, BUT NOT INCLUDING, SAID NEXT CHAMBER, THE THIRD DUCT BEING MANIFOLDED TO SUPPLY THE CHAMBER ADJACENT SAID NEXT CHAMBER AND EVERY FOURTH CHAMBER COUNTING FROM, BUT NOT INCLUDING, SAID NEXT CHAMBER, THE FOURTH DUCT BEING MANIFOLDED TO THE REMAINING INTERMEDIATE CHAMBERS; AND MEANS FOR WITHDRAWING LIQUID FROM SAID CHAMBERS AFTER PASSAGE THERETHROUGH.
Claim 2
Independent Claim
224 words
AN APPARATUS FOR PRODUCING IONIC COMPOUNDS IN SOLUTION BY ION TRANSFER UNDER THE INFLUENCE OF AN ELECTRIC CURRENT, PARTICULARLY FOR PRODUCING A PRODUCT COMPOUND FROM SOURCE COMPOUNDS OF A DIFFERENT CHEMICAL COMPOSITION THAN THE PRODUCT COMPOUND, THE APPARATUS COMPRISING MEANS FORMING A PLURALITY OF LIQUID CHAMBERS, SAID CHAMBERS INCLUDING TERMINAL ELECTRODE CHAMBERS, AND INTERMEDIATE CHAMBERS LYING BETWEN SAID TERMINAL CHAMBERS; ELECTRODES IN SAID TERMINAL CHAMBERS; LIQUID SEPARATING ION-PASSAGE-DISCRIMINATING MEMBRANES BETWEEN SAID CHAMBERS FOR ESTABLISHING SELECTIVELY RESTRICTED PATHS FOR IONS FROM CHAMBER TO CHAMBER, ALTERNATING MEMBRANES BEING PERMEABLE TO IONS OF ONE SIGN, THE REMAINAING MEMBRANES LYING BETWEEN SAID ALTERNATING MEMBRANES BEING PERMEABLE TO IONS OF THE OPPOSITE SIGN AND PASSAGE RESISTANT TO IONS OF THE ONE SIGN; MEANS FOR SUPPLYING LIQUID TO SAID INTERMEDIATE CHAMBERS, SAID MEANS INCLUDING FOUR DUCTS, THE FIRST DUCT BEING MANIFOLDED TO SUPPLY A CERTAIN CHAMBER AND EVERY FOURTH CHAMBER COUNTING FROM, BUT NOT INCLUDING, SAID CERTAIN CHAMBER, THE SECOND DUCT BEING MANIFOLDED TO SUPPLY THE CHAMBER NEXT TO SAID CERTAIN CHAMBER AND EVERY FOURTH CHAMBER COUNTING FROM, BUT NOT INCLUDING, SAID NEXT CHAMBER, THE THIRD DUCT BEING MANIFOLDED TO SUPPLY THE CHAMBER ADJACENT SAID NEXT CHAMBER AND EVERY FOURTH CHAMBER COUNTING FROM, BUT NOT INCLUDING, SAID NEXT CHAMBER, THE FOURTH DUCT BEING MANIFOLDED TO THE REMAINING INTERMEDIATE CHAMBERS; AND MEANS FOR WITHDRAWING LIQUID FROM SAID CHAMBERS AFTER PASSAGE THERETHROUGH.
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) | 1961-05-19 | 1961-11-18 | 1962-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-19 | 1965-11-18 | 1966-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-19 | 1969-11-18 | 1970-05-20 | $7700.00 | Window Closed / Lapsed |