Patent US2503381A successfully refreshed from Google Patents.
US2503381A
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Detergent composition
Assignee: ARROW LAB Inc
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Filing: 1948-11-26
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Granted: 1950-04-11
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Expires: 1968-11-26
Abstract
No abstract record available.
Inventors
- 👤 Eichwald Eric
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:41
CPC Classifications
C; C23; C23G; C23G1/00; C23G1/14; C23G1/16; C23G1/18
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
68 words
A DETERGENT COMPOSITION CONSISTING SUBSTANTIALLY OF 38-46% BY WEIGHT OF TRISODIUM PHOSPHATE, 30-47.5% OF SODA ASH, 1-3% BY WEIGHT OF SODIUM SESQUICARBONATE, 1-3% BY WEIGHT OF SODIUM BORATE, 1-3% BY WEIGHT OF SODIUM BICARBONATE, 0.257.0% BY WEIGHT OF AN ALKALI SALT OF CITRIC ACID SELECTED FROM THE GROUP CONSISTING OF SODIUM CITRATE AND POTASSIUM CITRATE, .025-8.0% BY WEIGHT OF POTASSIUM TARTRATE AND 0.25-9% BY WEIGHT OF SODIUM TARTRATE.
Claim 2
Dependent Claim
68 words
A DETERGENT COMPOSITION CONSISTING SUBSTANTIALLY OF 38-46% BY WEIGHT OF TRISODIUM PHOSPHATE, 30-47.5% OF SODA ASH, 1-3% BY WEIGHT OF SODIUM SESQUICARBONATE, 1-3% BY WEIGHT OF SODIUM BORATE, 1-3% BY WEIGHT OF SODIUM BICARBONATE, 0.257.0% BY WEIGHT OF AN ALKALI SALT OF CITRIC ACID SELECTED FROM THE GROUP CONSISTING OF SODIUM CITRATE AND POTASSIUM CITRATE, .025-8.0% BY WEIGHT OF POTASSIUM TARTRATE AND 0.25-9% BY WEIGHT OF SODIUM TARTRATE.
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) | 1953-04-10 | 1953-10-10 | 1954-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-04-10 | 1957-10-10 | 1958-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-04-10 | 1961-10-10 | 1962-04-11 | $7700.00 | Window Closed / Lapsed |