US3132852A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for mining soluble mineral substances
Assignee: Individual
•
Filing: 1962-05-29
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Granted: 1964-05-12
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Expires: 1982-05-29
Abstract
No abstract record available.
Inventors
- 👤 Samuel H Dolbear
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:57
CPC Classifications
E; E21; E21C; E21C45/00; E21C41/00; E21C41/16
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
39 words
A METHOD OF MINING A DEPOSIT OF SOLUBLE MINERAL COMPRISING ABRADING A FACE THEREOF WITH INSOLUBLE SOLID PARTICLES, APPLYING WATER THERETO TO DISSOLVE THE DESIRED MINERAL AND PRODUCE A SOLUTION THEREOF, AND SUBSEQUENTLY SEPARATING SAID MINERAL FROM SAID SOLUTION.
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) | 1967-05-12 | 1967-11-11 | 1968-05-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-05-12 | 1971-11-11 | 1972-05-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-05-12 | 1975-11-11 | 1976-05-12 | $7700.00 | Window Closed / Lapsed |