Patent US1034320A successfully refreshed from Google Patents.
US1034320A
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Manufacture of alkali metals.
Assignee: Chemische Fabrik Griesheim Elektron
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Filing: 1910-01-03
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Granted: 1912-07-30
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Expires: 1930-01-03
Abstract
No abstract record available.
Inventors
- 👤 Heinrich Specketer
- 👤 Wilhelm Hofmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:17
CPC Classifications
C; C22; C22B; C22B26/00; C22B26/10
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) | 1915-07-30 | 1916-01-29 | 1916-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1919-07-30 | 1920-01-29 | 1920-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1923-07-30 | 1924-01-29 | 1924-07-30 | $7700.00 | Window Closed / Lapsed |