US2962495A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polymer phosphoric acid anti-enzymatic substances
Assignee: Leo AB
•
Filing: 1953-06-17
•
Granted: 1960-11-29
•
Expires: 1973-06-17
Abstract
No abstract record available.
Inventors
- 👤 Ferno Ove Birger
- 👤 Fex Hans Jakob
- 👤 Linderot Torsten Ove Enok
- 👤 Rosenberg Ernst Thomas
- 👤 Lyngby Orholm Pr
- 👤 Hogberg Knut Bertil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:09
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/547; C07F9/655; C07F9/6552; C07F9/65522; C07H; C07H17/00; C07H17/04; C07H17/06; C07H17/065; C07H17/07
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
122 words
ANTI-ENZYMATIC SUBSTANCE CONSISTING OF POLYMER PHOSPHORIC ACID COMPOUNDS IN WHICH PHOSPHORIC ACID RADICALS FROM A PHOSPHORYLATING AGENT ARE INTER-CONNECTED BY ESTER LINKAGES THROUGH ORGANIC GROUPS, EACH ORGANIC GROUP BEING A RESIDUE OF A GLYCOSIDE OF A POLYHYDROXY COMPOUND SELECTED FROM THE CLASS CONSISTING OF FLAVONES, FLAVANONES, CHALKONES AND DIHYDROCHALKONES WITH AT LEAST TWO PHENOLIC HYDROXYL GROUPS NOT PARTAKING IN THE GLYCOSIDE FORMATION, THE RATIO OF PHOSPHORYLATING AGENT TO GLYCOSIDE BEING BETWEEN 1/2 AND N MOLS OF PHOSPHORYLATING AGENT TO EACH MOL OF GLYCOSIDES, N BEING THE NUMBER OF HYDROXYL GROUPS PRESENT IN THE AGLYCONE PORTION OF THE GLYCOSIDE, THE POLYMER COMPOUND HAVING A MILECULAR WEIGHT OF AT LEAST 2000, BUT, HOWEVER, NOT HIGHER THAN IT IS STILL SOLUBLE IN WATER OR ALKALI.
Claim 2
Dependent Claim
122 words
ANTI-ENZYMATIC SUBSTANCE CONSISTING OF POLYMER PHOSPHORIC ACID COMPOUNDS IN WHICH PHOSPHORIC ACID RADICALS FROM A PHOSPHORYLATING AGENT ARE INTER-CONNECTED BY ESTER LINKAGES THROUGH ORGANIC GROUPS, EACH ORGANIC GROUP BEING A RESIDUE OF A GLYCOSIDE OF A POLYHYDROXY COMPOUND SELECTED FROM THE CLASS CONSISTING OF FLAVONES, FLAVANONES, CHALKONES AND DIHYDROCHALKONES WITH AT LEAST TWO PHENOLIC HYDROXYL GROUPS NOT PARTAKING IN THE GLYCOSIDE FORMATION, THE RATIO OF PHOSPHORYLATING AGENT TO GLYCOSIDE BEING BETWEEN 1/2 AND N MOLS OF PHOSPHORYLATING AGENT TO EACH MOL OF GLYCOSIDES, N BEING THE NUMBER OF HYDROXYL GROUPS PRESENT IN THE AGLYCONE PORTION OF THE GLYCOSIDE, THE POLYMER COMPOUND HAVING A MILECULAR WEIGHT OF AT LEAST 2000, BUT, HOWEVER, NOT HIGHER THAN IT IS STILL SOLUBLE IN WATER OR ALKALI.
References Cited (Backward Citations)
FR887951A
Cited
US2465320A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-11-29 | 1964-05-30 | 1964-11-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-11-29 | 1968-05-30 | 1968-11-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-11-29 | 1972-05-30 | 1972-11-29 | $7700.00 | Window Closed / Lapsed |