US3489679A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ultrasonic clarification of liquids
Assignee: FMC Corp
•
Filing: 1967-08-15
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Granted: 1970-01-13
•
Expires: 1987-08-15
Abstract
No abstract record available.
Inventors
- 👤 Roger Davidson
- 👤 Warren G Palmer
- 👤 Tom H Forrest
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 03:13
CPC Classifications
B; B01; B01D; B01D21/00; B01D21/28; B01D21/283; B01D21/0012; B01D21/02; B01D21/04; B01D21/30; B01D21/302; B01D21/34; B01D29/00; B01D29/09; B01D29/60; B01D29/605; B01D29/62; B01D29/70; B01D29/72; B01D29/88; B01D29/90; B01D29/92; B01D33/00; B01D33/044; B01D33/048; B01D33/056; B01D33/44; B01D33/52; B01D33/54; B01D33/70; B01D33/72; B01D33/74; B01D33/80; B01D33/804; B01D33/807; B01D35/00; B01D35/20; B01D36/00; B01D36/04
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) | 1973-01-12 | 1973-07-14 | 1974-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-12 | 1977-07-14 | 1978-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-12 | 1981-07-14 | 1982-01-13 | $7700.00 | Window Closed / Lapsed |