US3131028A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Catalytic oxidation reaction of a hydrogen halide to produce the corresponding halogen in a single stage, homogeneous, vapor phase using no as a catalyst
Assignee: Hercules Powder Co
•
Filing: 1962-05-07
•
Granted: 1964-04-28
•
Expires: 1982-05-07
Abstract
No abstract record available.
Inventors
- 👤 Jr Frederic S Stow
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:24
CPC Classifications
C; C01; C01B; C01B7/00; C01B7/09; C01B7/13
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
60 words
A PROCESS OF OXIDIZING A HYDROGEN HALIDE TO THE CORRESPONDING HALOGEN WHICH COMPRISES CONTACTING IN A SINGLESTAGE, HOMOGENEOUS, VAPOR PHASE REACTION, THE HYDROGEN HALIDE GAS WITH OXYGEN AT A TEMPERATURE OF FROM ABOUT 250*C. TO ABOUT 550*C. IN THE PRESENCE OF NITROGEN DIOXIDE IN AN AMOUNT OF FROM ABOUT 0.005 MOLE TO ABOUT 0.25 MOLE PER MOLE OF HYDROGEN HALIDE.
Claim 2
Dependent Claim
60 words
A PROCESS OF OXIDIZING A HYDROGEN HALIDE TO THE CORRESPONDING HALOGEN WHICH COMPRISES CONTACTING IN A SINGLESTAGE, HOMOGENEOUS, VAPOR PHASE REACTION, THE HYDROGEN HALIDE GAS WITH OXYGEN AT A TEMPERATURE OF FROM ABOUT 250*C. TO ABOUT 550*C. IN THE PRESENCE OF NITROGEN DIOXIDE IN AN AMOUNT OF FROM ABOUT 0.005 MOLE TO ABOUT 0.25 MOLE PER MOLE OF HYDROGEN HALIDE.
References Cited (Backward Citations)
US2395314A
Cited
US2855279A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-04-28 | 1967-10-28 | 1968-04-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-04-28 | 1971-10-28 | 1972-04-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-04-28 | 1975-10-28 | 1976-04-28 | $7700.00 | Window Closed / Lapsed |