US3525701A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oxidation catalyst of an oxide composition of antimony,tin and copper
Assignee: Distillers Co Yeast Ltd
•
Filing: 1965-03-01
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Granted: 1970-08-25
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Expires: 1985-03-01
Abstract
No abstract record available.
Inventors
- 👤 John Lynn Barclay
- 👤 Edward James Gasson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 21:39
CPC Classifications
B; B01; B01J; B01J21/00; B01J23/00; B01J23/16; B01J23/32; B01J23/34; B01J23/70; B01J23/72; B01J23/76; B01J23/835; B01J23/84; B01J23/843; B01J23/8435; C; C07; C07C; C07C253/00; C07C253/24; C07C253/26; C07C45/00; C07C45/27; C07C45/32; C07C45/33; C07C45/34; C07C45/35; C07C5/00; C07C5/42; C07C5/48; Y; Y02; Y02P; Y02P20/00; Y02P20/50; Y02P20/52
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) | 1973-08-24 | 1974-02-23 | 1974-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-24 | 1978-02-23 | 1978-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-24 | 1982-02-23 | 1982-08-25 | $7700.00 | Window Closed / Lapsed |