US3374989A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and device for producing uniform dispersions
Assignee: Individual
•
Filing: 1965-12-22
•
Granted: 1968-03-26
•
Expires: 1985-12-22
Abstract
No abstract record available.
Inventors
- 👤 Todtenhaupt Erich Karl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 02:52
CPC Classifications
B; B01; B01F; B01F27/00; B01F27/05; B01F27/07; B01F27/072; B01F27/0722; B01F27/11; B01F27/19; B01F27/191; B01F27/80; B01F27/91
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US271242A
Cited
US700033A
Cited
US943200A
Cited
FR420931A
Cited
US2061547A
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US2657912A
Cited
FR1127615A
Cited
US3307834A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-03-26 | 1971-09-25 | 1972-03-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-03-26 | 1975-09-25 | 1976-03-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-03-26 | 1979-09-25 | 1980-03-26 | $7700.00 | Window Closed / Lapsed |