Patent US2533149A successfully refreshed from Google Patents.
US2533149A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Precipitation process and apparatus therefor
Assignee: Individual
•
Filing: 1946-04-25
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Granted: 1950-12-05
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Expires: 1966-04-25
Abstract
No abstract record available.
Inventors
- 👤 Jr Louis G Stang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 17:17
CPC Classifications
B; B01; B01J; B01J19/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
IN A PROCESS IN WHICH THE CHEMICAL REACTION IS EFFECTED IN A LIQUID AND THE REACTED PRODUCT IS FILTERED THROUGH A POROUS FILTER MEDIUM WHICH IS CHEMICALLY INERT TO BOTH THE REACTANT LIQUID AND THE REACTED PRODUCT, THE STEPS FOR EFFECTING SAID PROCESS BY REMOTELY CONTROLLABLE OPERATIONS WHICH COMPRISE CONCURRENTLY POSITIONING SAID LIUQID, PRIOR TO EFFECTING THE SAID REACTION, IN CONTACT WITH THE ANTI-GRAVITY SIDE OF SAID FILTER MEDIUM WHILE APPLYING A GAS AT SUPER-ATMOSPHERIC PRESSURE TO THE GRAVITY SIDE OF SAID FILTER MEDIUM TO BALANCE THE HYDROSTATIC PRESSURE OF SAID LIQUID, AND AFTER THE COMPLETION OF THE SAID REACTION REDUCING THE PRESSURE ON THE GRAVITY SIDE OF SAID FILTER MEDIUM SUBSTANTIALLY BELOW SAID HYDROSTATIC PRESSURE.
Claim 2
Dependent Claim
116 words
IN A PROCESS IN WHICH THE CHEMICAL REACTION IS EFFECTED IN A LIQUID AND THE REACTED PRODUCT IS FILTERED THROUGH A POROUS FILTER MEDIUM WHICH IS CHEMICALLY INERT TO BOTH THE REACTANT LIQUID AND THE REACTED PRODUCT, THE STEPS FOR EFFECTING SAID PROCESS BY REMOTELY CONTROLLABLE OPERATIONS WHICH COMPRISE CONCURRENTLY POSITIONING SAID LIUQID, PRIOR TO EFFECTING THE SAID REACTION, IN CONTACT WITH THE ANTI-GRAVITY SIDE OF SAID FILTER MEDIUM WHILE APPLYING A GAS AT SUPER-ATMOSPHERIC PRESSURE TO THE GRAVITY SIDE OF SAID FILTER MEDIUM TO BALANCE THE HYDROSTATIC PRESSURE OF SAID LIQUID, AND AFTER THE COMPLETION OF THE SAID REACTION REDUCING THE PRESSURE ON THE GRAVITY SIDE OF SAID FILTER MEDIUM SUBSTANTIALLY BELOW SAID HYDROSTATIC PRESSURE.
References Cited (Backward Citations)
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Cited
US1311017A
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US1316789A
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US658344A
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US653160A
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US1620815A
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-12-04 | 1954-06-05 | 1954-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-04 | 1958-06-05 | 1958-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-04 | 1962-06-05 | 1962-12-05 | $7700.00 | Window Closed / Lapsed |