US2590856A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilization of dilute solutions of aliphatic acids
Assignee: BUFFALO ELECTRO CHEM CO
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Filing: 1949-05-26
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Granted: 1952-04-01
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Expires: 1969-05-26
Abstract
No abstract record available.
Inventors
- 👤 Frank P Greenspan
- 👤 Donald G Mackellar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:32
CPC Classifications
C; C07; C07C; C07C407/00; C07C407/003; C07C407/006; D; D06; D06L; D06L4/00; D06L4/10; D06L4/12; D06L4/15
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
THE METHOD OF STABILIZING A BATH USED FOR BLEACHING, WASHING OR GERMICIDAL PURPOSED AND COMPRISING A DILUTE AQUEOUS SOLUTION OF AN ALIPHATIC PERACID CONTAINING NOT MORE THAN ABOUT 4% BY WEIGHT OF SAID PERACID AND HAVING A TEMPERATURE OF FROM 25* TO 100* C. AND HAVING A PH OF NOT LESS THAN ABOUT 4, SAID METHOD COMPRISING INCORPORATING IN SAID BATH A STABILIZING AMOUNT ABOUT 100 TO ABOUT 1000 P.P.M. OF A POLYMERIC MOLECULARLY DEHYDRATED PHOSPHATE HAVING A MOLAR RATIO OF R2O TO P2O5 NOT GREATER THAN 1.7 TO 1 WHERE R REPRESENTS ONE OR MORE ALKALI METALS, HYDROGEN, AMMONIUM, OR ANY COMBINATION THEREOF.
Claim 2
Independent Claim
104 words
THE METHOD OF STABILIZING A BATH USED FOR BLEACHING, WASHING OR GERMICIDAL PURPOSED AND COMPRISING A DILUTE AQUEOUS SOLUTION OF AN ALIPHATIC PERACID CONTAINING NOT MORE THAN ABOUT 4% BY WEIGHT OF SAID PERACID AND HAVING A TEMPERATURE OF FROM 25* TO 100* C. AND HAVING A PH OF NOT LESS THAN ABOUT 4, SAID METHOD COMPRISING INCORPORATING IN SAID BATH A STABILIZING AMOUNT ABOUT 100 TO ABOUT 1000 P.P.M. OF A POLYMERIC MOLECULARLY DEHYDRATED PHOSPHATE HAVING A MOLAR RATIO OF R2O TO P2O5 NOT GREATER THAN 1.7 TO 1 WHERE R REPRESENTS ONE OR MORE ALKALI METALS, HYDROGEN, AMMONIUM, OR ANY COMBINATION THEREOF.
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) | 1955-04-01 | 1955-10-01 | 1956-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-01 | 1959-10-01 | 1960-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-01 | 1963-10-01 | 1964-04-01 | $7700.00 | Window Closed / Lapsed |