US2432915A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for treating salt
Assignee: Individual
•
Filing: 1944-12-21
•
Granted: 1947-12-16
•
Expires: 1964-12-21
Abstract
No abstract record available.
Inventors
- 👤 J Grant-Mackay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 07:23
CPC Classifications
C; C01; C01D; C01D3/00; C01D3/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US475575A
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US721633A
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US932204A
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US1699377A
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US1584129A
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US1782038A
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US1923877A
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GB393332A
Cited
GB391722A
Cited
US2205872A
Cited
US2414969A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-12-15 | 1951-06-16 | 1951-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-12-15 | 1955-06-16 | 1955-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-12-15 | 1959-06-16 | 1959-12-16 | $7700.00 | Window Closed / Lapsed |