Patent US2435495A successfully refreshed from Google Patents.
US2435495A
Expired / Lapsed
US
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Process for producing magnesium ore briquettes
Assignee: Dominion Magnesium Ltd
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Filing: 1944-06-21
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Granted: 1948-02-03
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Expires: 1964-06-21
Abstract
No abstract record available.
Inventors
- 👤 Dick John Parsons
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 18:04
CPC Classifications
C; C22; C22B; C22B26/00; C22B26/20; C22B26/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1087183A
Cited
GB412417A
Cited
US2065618A
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US2117415A
Cited
US2219427A
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US2160956A
Cited
US2295105A
Cited
US2323597A
Cited
US2393080A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-02-02 | 1951-08-04 | 1952-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-02-02 | 1955-08-04 | 1956-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-02-02 | 1959-08-04 | 1960-02-03 | $7700.00 | Window Closed / Lapsed |