Patent US3352773A successfully refreshed from Google Patents.
US3352773A
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Method of degrading polysaccharides using light radiation and a watersoluble metal or nitrogen base salt of nitrous or hyponitric acid
Assignee: Gillette Research Institute
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Filing: 1964-09-16
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Granted: 1967-11-14
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Expires: 1984-09-16
Abstract
No abstract record available.
Inventors
- 👤 Anthony M Schwartz
- 👤 Charles A Rader
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 11:06
CPC Classifications
C; C08; C08B; C08B15/00; C13; C13K; C13K13/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
75 words
IN THE CONVERSION OF POLYSACCHARIDES TO SACCHARIDES OF LOWER MOLECULAR WEIGHT BY IRRADIATING THE POLYSACCHARIDE WITH LIGHT RICH IN FREQUENCIES OF ABOUT 355 MILLIMICRONS, THE IMPROVEMENT WHICH CONSISTS IN CARRYING OUT THE IRRADIATION IN THE PRESENCE OF A WATER-SOLUBLE METAL OR NITROGEN BASE SALT OF NITROUS OF HYPONITRIC ACID IN AN AMOUNT EQUIVALENT TO FROM ABOUT 0.04 TO ABOUT 5 PARTS BY WEIGHT OF SODIUM NITRITE BASED ON 100 PARTS BY WEIGHT OF THE POLYSACCHARIDE.
Claim 2
Dependent Claim
75 words
IN THE CONVERSION OF POLYSACCHARIDES TO SACCHARIDES OF LOWER MOLECULAR WEIGHT BY IRRADIATING THE POLYSACCHARIDE WITH LIGHT RICH IN FREQUENCIES OF ABOUT 355 MILLIMICRONS, THE IMPROVEMENT WHICH CONSISTS IN CARRYING OUT THE IRRADIATION IN THE PRESENCE OF A WATER-SOLUBLE METAL OR NITROGEN BASE SALT OF NITROUS OF HYPONITRIC ACID IN AN AMOUNT EQUIVALENT TO FROM ABOUT 0.04 TO ABOUT 5 PARTS BY WEIGHT OF SODIUM NITRITE BASED ON 100 PARTS BY WEIGHT OF THE POLYSACCHARIDE.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-11-13 | 1971-05-15 | 1971-11-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-13 | 1975-05-15 | 1975-11-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-13 | 1979-05-15 | 1979-11-14 | $7700.00 | Window Closed / Lapsed |