US3267161A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chlorination process
Assignee: Daikin Industries Ltd
•
Filing: 1963-07-19
•
Granted: 1966-08-16
•
Expires: 1983-07-19
Abstract
No abstract record available.
Inventors
- 👤 Ukaji Rokuo
- 👤 Maruo Keiichi
- 👤 Misaki Susumu
- 👤 Ogawa Shigeyoshi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 07:20
CPC Classifications
C; C07; C07C; C07C17/00; C07C17/093; C07C17/15; B; B01; B01J; B01J27/00; B01J27/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
149 words
A PROCESS FOR THE PRECHLORINATION OF METHANE, COMPRISING REACTING SAID METHANE, AN OXYGEN CONTAINING GAS, AND A CHLORINATING AGENT SELCTED FROM THE GROUP CONSISTING OF HCI, CI2 AND MIXTURES OF HCI AND CI2, AT 350* TO 550*C. FOR FROM 10 TO 20 SECONDS IN CONTACT WITH A CATALYST IMPREGNATED IN A POROUS MATERIAL HAVING A SURFACE AREA OF 0.3 TO 30 M.2/G. AND A POROSITY RANGING FROM 0.1 TO 0.8 CC./G., SAID CATALYST BEING A MEMBER SELECTED FROM THE GROUP CONSISTING OF A MIXTURE OF FROM 50 TO 90 WEIGHT PERCENT CUC12 AND FROM 50 TO 10 WEIGHT PERCENT LACI3 AND A MIXTURE OF FROM 50 TO 90 WEIGHT PERCENT CUC12, FROM 25 TO 5 WEIGHT PERCENT LAC13 AND FROM 25 TO 5 WEIGHT PERCENT LDCI3, LD BEING A LANTHANIDE SELECTED FROM THE GROUP CONSISTING OF ELEMENTS RANGING FROM THE 58TH TO THE 71ST ELEMENT IN THE PERIODIC TABLE.
Claim 2
Dependent Claim
149 words
A PROCESS FOR THE PRECHLORINATION OF METHANE, COMPRISING REACTING SAID METHANE, AN OXYGEN CONTAINING GAS, AND A CHLORINATING AGENT SELCTED FROM THE GROUP CONSISTING OF HCI, CI2 AND MIXTURES OF HCI AND CI2, AT 350* TO 550*C. FOR FROM 10 TO 20 SECONDS IN CONTACT WITH A CATALYST IMPREGNATED IN A POROUS MATERIAL HAVING A SURFACE AREA OF 0.3 TO 30 M.2/G. AND A POROSITY RANGING FROM 0.1 TO 0.8 CC./G., SAID CATALYST BEING A MEMBER SELECTED FROM THE GROUP CONSISTING OF A MIXTURE OF FROM 50 TO 90 WEIGHT PERCENT CUC12 AND FROM 50 TO 10 WEIGHT PERCENT LACI3 AND A MIXTURE OF FROM 50 TO 90 WEIGHT PERCENT CUC12, FROM 25 TO 5 WEIGHT PERCENT LAC13 AND FROM 25 TO 5 WEIGHT PERCENT LDCI3, LD BEING A LANTHANIDE SELECTED FROM THE GROUP CONSISTING OF ELEMENTS RANGING FROM THE 58TH TO THE 71ST ELEMENT IN THE PERIODIC TABLE.
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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) | 1969-08-15 | 1970-02-14 | 1970-08-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-15 | 1974-02-14 | 1974-08-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-15 | 1978-02-14 | 1978-08-16 | $7700.00 | Window Closed / Lapsed |