US3525504A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Additive mixer
Assignee: Monsanto Co
•
Filing: 1968-09-26
•
Granted: 1970-08-25
•
Expires: 1988-09-26
Abstract
No abstract record available.
Inventors
- 👤 Robert E Colwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 14:24
CPC Classifications
B; B01; B01F; B01F23/00; B01F23/40; B01F23/47; B01F25/00; B01F25/30; B01F25/31; B01F25/313; B01F25/3131; B01F25/40; B01F25/45; B01F25/451; B01F27/00; B01F27/50
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 |