US3423185A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gauze catalyst support
Assignee: Monsanto Co
•
Filing: 1964-01-02
•
Granted: 1969-01-21
•
Expires: 1984-01-02
Abstract
No abstract record available.
Inventors
- 👤 Louis H Ballard
- 👤 Buddy L Satterley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:34
CPC Classifications
B; B01; B01J; B01J8/00; B01J8/008; B01J2208/00; B01J2208/00796; B01J2208/00884
Claims Analysis
Total Claims: 0
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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) | 1972-01-21 | 1972-07-22 | 1973-01-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-21 | 1976-07-22 | 1977-01-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-21 | 1980-07-22 | 1981-01-21 | $7700.00 | Window Closed / Lapsed |