US2826552A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water treating and cleaning composition
Assignee: Bonewitz Chemicals Inc
•
Filing: 1954-02-19
•
Granted: 1958-03-11
•
Expires: 1974-02-19
Abstract
No abstract record available.
Inventors
- 👤 Paul W Bonewitz
- 👤 Elmer H Fults
- 👤 Sebern W Hockett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 23:44
CPC Classifications
C; C02; C02F; C02F5/00; C02F5/08; C02F5/10; C02F5/105; C11; C11D; C11D1/00; C11D1/02; C11D1/12; C11D1/30; C11D3/00; C11D3/16; C11D3/20; C11D3/22; C11D3/222; C11D7/00; C11D7/02; C11D7/04; C11D7/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
73 words
A DRY WATER-SOLUBLE, WATER TREATING AND CLEANING COMPOSITION COMPRISING DEXTRIN, A LIGNOSULFONATE SELECTED FROM THE GROUP CONSISTING OF SODIUM AND CALCIUM LIGNOSULFONATE AND SODIUM HYDROXIDE, FROM 20 TO 80% BY WEIGHT OF THE DEXTRIN-LIGNOSULFONATE CONTENT BEING LIGNOSULFONATE, THE RATIO OF THE SODIUM HYDROXIDE TO THE TOTAL DEXTRIN-LIGNOSULFONATE CONTENT BEING BETWEEN ABOUT 50 TO 99.5 PARTS SODIUM HYDROXIDE TO BETWEEN ABOUT 0.5 TO 50 PARTS DEXTRIN AND LIGNOSULFONATE BY WEIGHT ON A DRY BASIS.
Claim 2
Dependent Claim
73 words
A DRY WATER-SOLUBLE, WATER TREATING AND CLEANING COMPOSITION COMPRISING DEXTRIN, A LIGNOSULFONATE SELECTED FROM THE GROUP CONSISTING OF SODIUM AND CALCIUM LIGNOSULFONATE AND SODIUM HYDROXIDE, FROM 20 TO 80% BY WEIGHT OF THE DEXTRIN-LIGNOSULFONATE CONTENT BEING LIGNOSULFONATE, THE RATIO OF THE SODIUM HYDROXIDE TO THE TOTAL DEXTRIN-LIGNOSULFONATE CONTENT BEING BETWEEN ABOUT 50 TO 99.5 PARTS SODIUM HYDROXIDE TO BETWEEN ABOUT 0.5 TO 50 PARTS DEXTRIN AND LIGNOSULFONATE BY WEIGHT ON A DRY BASIS.
References Cited (Backward Citations)
US2220950A
Cited
GB566394A
Cited
US2505457A
Cited
US2575298A
Cited
US2576418A
Cited
US2528351A
Cited
US2678303A
Cited
US2744866A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-10 | 1961-09-09 | 1962-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-10 | 1965-09-09 | 1966-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-10 | 1969-09-09 | 1970-03-11 | $7700.00 | Window Closed / Lapsed |