Patent US2877178A successfully refreshed from Google Patents.
US2877178A
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Ampholytic compositions in wet treatments
Assignee: GAF Chemicals Corp
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Filing: 1955-12-20
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Granted: 1959-03-10
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Expires: 1975-12-20
Abstract
No abstract record available.
Inventors
- 👤 Carl A Bergman
- 👤 Emil C Hansen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:03
CPC Classifications
A; A61; A61Q; A61Q5/00; A61Q5/02; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/33; A61K8/39; A61K8/40; A61K8/44; A61K8/442; A61K8/72; A61K8/84; A61K8/86; C; C11; C11D; C11D1/00; C11D1/88; D; D06; D06M; D06M13/00; D06M13/322; D06M13/402; D06M13/405; A61K2800/00; A61K2800/40; A61K2800/59; A61K2800/596
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
17 words
A COMPOSITION FOR USE IN THE WET TREATMENT OF MATERIAL COMPRISING AN AMPHOLYTIC COMPOUND HAVING THE FORMULA
Claim 2
Dependent Claim
17 words
A COMPOSITION FOR USE IN THE WET TREATMENT OF MATERIAL COMPRISING AN AMPHOLYTIC COMPOUND HAVING 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) | 1962-03-09 | 1962-09-08 | 1963-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-09 | 1966-09-08 | 1967-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-09 | 1970-09-08 | 1971-03-10 | $7700.00 | Window Closed / Lapsed |