US2996449A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glucose-amine sequestrants
Assignee: Individual
•
Filing: 1960-06-29
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Granted: 1961-08-15
•
Expires: 1980-06-29
Abstract
No abstract record available.
Inventors
- 👤 John E Hodge
- 👤 Ben F Moy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:03
CPC Classifications
C; C07; C07H; C07H5/00; C07H5/04; C07H5/06; C02; C02F; C02F5/00; C02F5/08; C02F5/10; C02F5/12; C07H15/00; C07H15/02; C07H15/12
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
55 words
THE METHOD OF SEQUESTERING METAL IONS SELECTED FROM THE GROUP CONSISTING OF COPPER, IRON, AND ZINC IN ALKALINE TO NEUTRAL SOLUTION AND OF SOFTENING CALCIUM AND MAGNESIUM-CONTAINING WATERS COMPRISING THE STEP OF ADDING TO SAID WATERS A MEMBER SELECTED FROM THE GROUP CONSISTING OF IMINO-BIS(1-DEOXY-D-FRUCTOSE), THE ACETATE SALT OF IMINO-BIS-1-DEOXY-D-FRUCTOSE, AND MIXTURES COMPRISING THE SAME.
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) | 1964-08-14 | 1965-02-13 | 1965-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-14 | 1969-02-13 | 1969-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-14 | 1973-02-13 | 1973-08-15 | $7700.00 | Window Closed / Lapsed |