US2863909A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of extracting 1, 4-dicaffeyl-quinic acid
Assignee: Pfizer Italia SRL
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Filing: 1957-09-04
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Granted: 1958-12-09
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Expires: 1977-09-04
Abstract
No abstract record available.
Inventors
- 👤 Panizzi Luigi
- 👤 Oriente Giovanna
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:52
CPC Classifications
A; A61; A61K; A61K36/00; A61K36/18; A61K36/185; A61K36/23; A61K36/235; A61K36/28; C; C07; C07C; C07C59/00; C07C59/40; C07C59/42; C07C59/52; C07C69/00; C07C69/76
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
90 words
THE PROCESS FOR OBTAINING 1,4-DICAFFEYLQUINIC ACID FROM PLANTS TAKEN FROM THE GROUP CONSISTING OF CYNARA CARDUNCULUS, CYNARA SCOLYMUS, ONOPORDON ILLYRIUM, SCOLYMUS HISPANICUS, LUPSIA GALACTITES, FOENICULUM VULGARE AND FOENICULUM PIPERITUM, WHICH COMPRISES TREATING A DECOCTION LIQUOR OBTAINED FROM ONE OF SAID PLANTS CONTAINING SAID 1,4-DICAFFEYLQUINIC ACID WITH AN EXCESS OF A SALT TAKEN FROM THE GROUP CONSISTING OF AQUEOUSLY SOLUBLE BARIUM AND LEAD SALTS, AND SEPARATING SAID 1,4DICAFFEYLQUINIC ACID FROM THE RESULTING VOLUMINOUS PRECIPITATE BY ADDING AN ACID TAKEN FROM THE GROUP OF ACIDS CONSISTING OF SULFURIC, NITRIC AND ACETIC ACIDS.
Claim 2
Dependent Claim
90 words
THE PROCESS FOR OBTAINING 1,4-DICAFFEYLQUINIC ACID FROM PLANTS TAKEN FROM THE GROUP CONSISTING OF CYNARA CARDUNCULUS, CYNARA SCOLYMUS, ONOPORDON ILLYRIUM, SCOLYMUS HISPANICUS, LUPSIA GALACTITES, FOENICULUM VULGARE AND FOENICULUM PIPERITUM, WHICH COMPRISES TREATING A DECOCTION LIQUOR OBTAINED FROM ONE OF SAID PLANTS CONTAINING SAID 1,4-DICAFFEYLQUINIC ACID WITH AN EXCESS OF A SALT TAKEN FROM THE GROUP CONSISTING OF AQUEOUSLY SOLUBLE BARIUM AND LEAD SALTS, AND SEPARATING SAID 1,4DICAFFEYLQUINIC ACID FROM THE RESULTING VOLUMINOUS PRECIPITATE BY ADDING AN ACID TAKEN FROM THE GROUP OF ACIDS CONSISTING OF SULFURIC, NITRIC AND ACETIC ACIDS.
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) | 1961-12-08 | 1962-06-09 | 1962-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-08 | 1966-06-09 | 1966-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-08 | 1970-06-09 | 1970-12-09 | $7700.00 | Window Closed / Lapsed |