US3431067A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of manufacturing a fluorination catalyst
Assignee: Daikin Industries Ltd
•
Filing: 1966-01-18
•
Granted: 1969-03-04
•
Expires: 1986-01-18
Abstract
No abstract record available.
Inventors
- 👤 Kaoru Kato
- 👤 Shigeyoshi Ogawa
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:59
CPC Classifications
B; B01; B01J; B01J27/00; B01J27/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2863824A
Cited
US2745867A
Cited
US2745886A
Cited
US2952715A
Cited
US2960554A
Cited
US3183276A
Cited
US3341281A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-03 | 1972-09-02 | 1973-03-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-03 | 1976-09-02 | 1977-03-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-03 | 1980-09-02 | 1981-03-04 | $7700.00 | Window Closed / Lapsed |