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US1030747A
Expired / Lapsed
US
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Method of producing water-soluble crystalline aluminum formate and product obtained thereby.
Assignee: FIRM OF JOHANN A WUELFING
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Filing: 1910-07-25
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Granted: 1912-06-25
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Expires: 1930-07-25
Abstract
No abstract record available.
Inventors
- 👤 Fritz Quade
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:45
CPC Classifications
C; C07; C07C; C07C51/00; C07C51/41; C07C51/412
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) | 1915-06-25 | 1915-12-25 | 1916-06-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1919-06-25 | 1919-12-25 | 1920-06-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1923-06-25 | 1923-12-25 | 1924-06-25 | $7700.00 | Window Closed / Lapsed |