US3042501A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Separation and recovery of volatile sulphides from sulphide materials
Assignee: Individual
•
Filing: 1955-10-28
•
Granted: 1962-07-03
•
Expires: 1975-10-28
Abstract
No abstract record available.
Inventors
- 👤 Harvey L Noblitt
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:44
CPC Classifications
C; C01; C01G; C01G28/00; C01G28/008; B; B01; B01D; B01D3/00; B01D3/10; C01G30/00; C01G30/008
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US875381A
Cited
US996474A
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US1594344A
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US1941610A
Cited
US1955964A
Cited
US2130886A
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US2103131A
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US2265180A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-07-02 | 1966-01-01 | 1966-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-07-02 | 1970-01-01 | 1970-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-07-02 | 1974-01-01 | 1974-07-03 | $7700.00 | Window Closed / Lapsed |