Patent EP0105710A2 successfully refreshed from Google Patents.
Patent US2549079A successfully refreshed from Google Patents.
US2549079A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Color and stain removers for
Assignee: —
•
Filing: —
•
Granted: 1951-04-17
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Expires: 1968-04-17
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:15
CPC Classifications
C; C11; C11D; C11D1/00; C11D1/38; C11D1/62; C11D3/00; C11D3/16; C11D3/20; C11D3/2075; C11D1/66; C11D1/72; C11D3/02; C11D3/04; C11D3/042; C11D3/046; C11D3/2068; C11D3/2079; C11D3/2086; C11D3/34; C11D7/00; C11D7/22; C11D7/34; C11D2111/00; C11D2111/10; C11D2111/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
46 words
A SOLID DRY COLOR AND STAIN REMOVER FOR FABRICS CONSISTING ESSENTIALLY OF 100 PARTS BY WEIGHT OF BASIC SULFOXYLATE FORMALDEHYDE, 37 TO 41 PARTS BY WEIGHT OF OXALIC ACID, AND 1 TO 20 PARTS BY WEIGHT OF PARA DIISOBUTYL PHENOXY ETHOXY ETHYL DIMETHYL BENZYL AMMONIUM CHLORIDE.
Claim 2
Dependent Claim
46 words
A SOLID DRY COLOR AND STAIN REMOVER FOR FABRICS CONSISTING ESSENTIALLY OF 100 PARTS BY WEIGHT OF BASIC SULFOXYLATE FORMALDEHYDE, 37 TO 41 PARTS BY WEIGHT OF OXALIC ACID, AND 1 TO 20 PARTS BY WEIGHT OF PARA DIISOBUTYL PHENOXY ETHOXY ETHYL DIMETHYL BENZYL AMMONIUM CHLORIDE.
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) | 1954-04-16 | 1954-10-16 | 1955-04-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-04-16 | 1958-10-16 | 1959-04-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-04-16 | 1962-10-16 | 1963-04-17 | $7700.00 | Window Closed / Lapsed |