Patent US2653078A successfully refreshed from Google Patents.
US2653078A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal oxide production
Assignee: EIDP Inc
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Filing: 1951-01-02
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Granted: 1953-09-22
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Expires: 1971-01-02
Abstract
No abstract record available.
Inventors
- 👤 Frank W Lane
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 02:39
CPC Classifications
C; C01; C01G; C01G23/00; C01G23/04; C01G23/047; C01G23/07; C01B; C01B13/00; C01B13/14; C01B13/20; C01B13/22
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
A MENTIONED FOR PREVENTING METAL OXIDE SCALE DEPOSITION AND BUILD-UP UPON THE SURFACES OF INLETS TO A REACTOR EMPLOYED IN THE VAPOR PHASE OXIDATION AT TEMPERATURES ABOVE 700* C. OF A VOLATILE METAL HALIDE WITH AN OXIDIZING GAS WHICH COMPRISES DURING SAID OXIDIZATING FLOWING OUT OF CONTACT WITH THE REACTANTS A COOLING FLUID ABOUT SAID INLETS TO MAINTAIN THEM IN COOLED STATE AND AT A TEMPERATURE SUBSTANTIALLY BELOW SAID OXIDATION TEMPERATURE BUT ABOVE THE VAPORIZATION TEMPERATURE OF THE HALIDE REACTANT.
Claim 2
Dependent Claim
80 words
A MENTIONED FOR PREVENTING METAL OXIDE SCALE DEPOSITION AND BUILD-UP UPON THE SURFACES OF INLETS TO A REACTOR EMPLOYED IN THE VAPOR PHASE OXIDATION AT TEMPERATURES ABOVE 700* C. OF A VOLATILE METAL HALIDE WITH AN OXIDIZING GAS WHICH COMPRISES DURING SAID OXIDIZATING FLOWING OUT OF CONTACT WITH THE REACTANTS A COOLING FLUID ABOUT SAID INLETS TO MAINTAIN THEM IN COOLED STATE AND AT A TEMPERATURE SUBSTANTIALLY BELOW SAID OXIDATION TEMPERATURE BUT ABOVE THE VAPORIZATION TEMPERATURE OF THE HALIDE REACTANT.
References Cited (Backward Citations)
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Cited
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-09-21 | 1957-03-23 | 1957-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-21 | 1961-03-23 | 1961-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-21 | 1965-03-23 | 1965-09-22 | $7700.00 | Window Closed / Lapsed |