US3440301A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dynamic stabilization of a platinum-alumina catalyst in an isomerization reaction
Assignee: Texaco Inc
•
Filing: 1966-09-27
•
Granted: 1969-04-22
•
Expires: 1986-09-27
Abstract
No abstract record available.
Inventors
- 👤 William L Lafferty Jr
- 👤 Edward T Child
- 👤 John H Estes
- 👤 George W Vachuda
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:29
CPC Classifications
B; B01; B01J; B01J27/00; B01J27/06; B01J27/128; B01J27/13; C; C07; C07C; C07C5/00; C07C5/22; C07C5/2206; C07C5/226; C07C5/27; C07C5/2767; C07C5/277; C07C5/2791; C07C2521/00; C07C2521/02; C07C2521/04; C07C2523/00; C07C2523/38; C07C2523/40; C07C2523/42
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US3247128A
Cited
US3242228A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-04-21 | 1972-10-21 | 1973-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-21 | 1976-10-21 | 1977-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-21 | 1980-10-21 | 1981-04-22 | $7700.00 | Window Closed / Lapsed |