US2953423A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Solubilization of dissociable ionic structures
Assignee: GAF Chemicals Corp
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Filing: 1957-01-29
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Granted: 1960-09-20
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Expires: 1977-01-29
Abstract
No abstract record available.
Inventors
- 👤 Saul R Buc
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:57
CPC Classifications
C; C09; C09B; C09B9/00; C09B67/00; C09B67/0071; C09B67/0077
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
13 words
A SOLUTION COMPRISING A POLAR SOLVENT, A FORMYLATED AROMATIC AMINE OF THE FORMULA
Claim 2
Dependent Claim
13 words
A SOLUTION COMPRISING A POLAR SOLVENT, A FORMYLATED AROMATIC AMINE OF THE FORMULA
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-20 | 1964-03-21 | 1964-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-20 | 1968-03-21 | 1968-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-20 | 1972-03-21 | 1972-09-20 | $7700.00 | Window Closed / Lapsed |