US3347370A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for washing and removing organic heavy liquids from mineral particles
Assignee: Individual
•
Filing: 1963-10-31
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Granted: 1967-10-17
•
Expires: 1983-10-31
Abstract
No abstract record available.
Inventors
- 👤 Rampacek Carl
- 👤 James S Browning
- 👤 Thomas L Mcvay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:19
CPC Classifications
B; B03; B03B; B03B5/00; B03B5/28; B03B5/30; B03B5/44
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
38 words
IN A PROCESS FOR GRAVITY SEPARATION OF MINERALS BY MEANS OF A HEAVY ORGANIC LIQUID, THE IMPROVEMENT WHICH COMPRISES REMOVAL OF THE HEAVY LIQUID FROM THE SEPARATED MINERAL PARTICLES BY TREATMENT OF THE MINERAL PARTICLES WITH STEAM ALONE.
Claim 2
Dependent Claim
38 words
IN A PROCESS FOR GRAVITY SEPARATION OF MINERALS BY MEANS OF A HEAVY ORGANIC LIQUID, THE IMPROVEMENT WHICH COMPRISES REMOVAL OF THE HEAVY LIQUID FROM THE SEPARATED MINERAL PARTICLES BY TREATMENT OF THE MINERAL PARTICLES WITH STEAM ALONE.
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) | 1970-10-16 | 1971-04-17 | 1971-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-16 | 1975-04-17 | 1975-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-16 | 1979-04-17 | 1979-10-17 | $7700.00 | Window Closed / Lapsed |