US1644246A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the manufacture of calcium salts of inositol-phosphoric acid
Assignee: BASF Schweiz AG
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Filing: 1925-12-01
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Granted: 1927-10-04
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Expires: 1945-12-01
Abstract
No abstract record available.
Inventors
- 👤 Gams Alphons
- 👤 Girard Max
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 10:46
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/08; C07F9/09; C07F9/117
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) | 1930-10-03 | 1931-04-04 | 1931-10-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1934-10-03 | 1935-04-04 | 1935-10-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1938-10-03 | 1939-04-04 | 1939-10-04 | $7700.00 | Window Closed / Lapsed |