Patent US3313779A successfully refreshed from Google Patents.
US3313779A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resin carrying aldehyde bound chelator
Assignee: Individual
•
Filing: 1964-04-06
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Granted: 1967-04-11
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Expires: 1984-04-06
Abstract
No abstract record available.
Inventors
- 👤 Le Roy A White
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 04:07
CPC Classifications
B; B01; B01J; B01J45/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
34 words
A CHLEATING RESIN COMPRISING THE REACTION PRODUCT OF (A) AN ALDEHYDE COMPOUND HAVING NO MORE THAN 54 CARBON ATOMS; (B) AN ALDEHYDE-REACTIVE SEQUESTERING AGENT CONTAINING AT LEAST ONE OF THE GROUPS >NH, -CH(COOH)2 AND
Claim 2
Dependent Claim
34 words
A CHLEATING RESIN COMPRISING THE REACTION PRODUCT OF (A) AN ALDEHYDE COMPOUND HAVING NO MORE THAN 54 CARBON ATOMS; (B) AN ALDEHYDE-REACTIVE SEQUESTERING AGENT CONTAINING AT LEAST ONE OF THE GROUPS >NH, -CH(COOH)2 AND
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) | 1970-04-10 | 1970-10-10 | 1971-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-04-10 | 1974-10-10 | 1975-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-04-10 | 1978-10-10 | 1979-04-11 | $7700.00 | Window Closed / Lapsed |