US2768997A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phosphorus-containing polypeptides
Assignee: —
•
Filing: —
•
Granted: 1956-10-30
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Expires: 1973-10-30
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 20:26
CPC Classifications
C; C07; C07K; C07K14/00; C07K14/435; C07K14/46; C07K14/47; C07K14/4701; C07K14/4702; C07K14/4703; A; A23; A23J; A23J3/00; A23J3/14; Y; Y10; Y10S; Y10S530/00; Y10S530/827; Y10S530/832; Y10S530/855; Y10S530/857
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
91 words
A SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF PHOSPHORUS-MODIFIED POLYPEPTIDES AND PROTEINS CONTAINING REOCCURRING STRUCTURAL UNITS IN WHICH EACH OF SAID UNITS CONTAINS AT LEAST ONE PHOSPHORUS ATOM CONNECTED TO A TRIVALENT NITROGEN ATOM BY A STRUCTURE FROM THE GROUP CONSISTING OF -CH2- AND -CH2OCH2-, SAID SUBSTANCE HAVING BEEN PRODUCED BY REACTING, IN AN AQUEOUS DISPERSION, A MATERIAL FROM THE GROUP CONSISTING OF AQUEOUS DISPERSIBLE POLYPEPTIDES AND AQUEOUS DISPERSIBLE PROTEINS WHICH CONTAIN REOCCURRING STRUCTURAL UNITS, EACH OF SAID REOCCURRING STRUCTURAL UNITS CONTAINING AT LEAST ONE STRUCTURE FROM THE GROUP CONSISTING OF
Claim 2
Dependent Claim
91 words
A SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF PHOSPHORUS-MODIFIED POLYPEPTIDES AND PROTEINS CONTAINING REOCCURRING STRUCTURAL UNITS IN WHICH EACH OF SAID UNITS CONTAINS AT LEAST ONE PHOSPHORUS ATOM CONNECTED TO A TRIVALENT NITROGEN ATOM BY A STRUCTURE FROM THE GROUP CONSISTING OF -CH2- AND -CH2OCH2-, SAID SUBSTANCE HAVING BEEN PRODUCED BY REACTING, IN AN AQUEOUS DISPERSION, A MATERIAL FROM THE GROUP CONSISTING OF AQUEOUS DISPERSIBLE POLYPEPTIDES AND AQUEOUS DISPERSIBLE PROTEINS WHICH CONTAIN REOCCURRING STRUCTURAL UNITS, EACH OF SAID REOCCURRING STRUCTURAL UNITS CONTAINING AT LEAST ONE STRUCTURE FROM THE GROUP CONSISTING OF
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) | 1959-10-30 | 1960-04-30 | 1960-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-30 | 1964-04-30 | 1964-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-30 | 1968-04-30 | 1968-10-30 | $7700.00 | Window Closed / Lapsed |