US1180089A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and apparatus for separation of ores by flotation.
Assignee: G M PARKS Co
•
Filing: 1916-01-13
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Granted: 1916-04-18
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Expires: 1936-01-13
Abstract
No abstract record available.
Inventors
- 👤 Albert W Thompson
- 👤 David Cole
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:27
CPC Classifications
B; B03; B03D; B03D1/00; B03D1/14; B01; B01D; B01D21/00; B01D21/26; B03D1/02; B03D1/028; B03D1/24; B03D1/245; B03D1/247; B03D1/1406; Y; Y10; Y10S; Y10S209/00; Y10S209/901
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1919-04-18 | 1919-10-18 | 1920-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1923-04-18 | 1923-10-18 | 1924-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1927-04-18 | 1927-10-18 | 1928-04-18 | $7700.00 | Window Closed / Lapsed |