Patent US3493519A successfully refreshed from Google Patents.
US3493519A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hydrothermally stable catalysts of high activity and methods for their preparation
Assignee: Mobil Oil AS
•
Filing: 1966-03-30
•
Granted: 1970-02-03
•
Expires: 1986-03-30
Abstract
No abstract record available.
Inventors
- 👤 George T Kerr
- 👤 Joseph N Miale
- 👤 Richard J Mikovsky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 20:26
CPC Classifications
B; B01; B01J; B01J29/00; B01J29/04; B01J29/06; B01J29/08; B01J20/00; B01J20/02; B01J20/10; B01J20/16; B01J20/18; B01J20/186; C; C10; C10G; C10G47/00; C10G47/02; C10G47/10; C10G47/12; C10G47/16; B01J2229/00; B01J2229/10; B01J2229/16; Y; Y10; Y10S; Y10S423/00; Y10S423/21; Y10S502/00; Y10S502/50; Y10S502/501
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-02-02 | 1973-08-04 | 1974-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-02-02 | 1977-08-04 | 1978-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-02-02 | 1981-08-04 | 1982-02-03 | $7700.00 | Window Closed / Lapsed |