Patent US4184986A successfully refreshed from Google Patents.
US4184986A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Novel condensation products having high activity to insolubilize proteins and protein-insolubilized products
Assignee: Givaudan Roure Corp
•
Filing: 1977-08-03
•
Granted: 1980-01-22
•
Expires: 1997-08-03
Abstract
Abstract The novel condensation product of 1,3-phenylenediamine and glutardialdehyde has high activity to fix or insolubilize proteins, including enzymers.
Inventors
- 👤 Victor Krasnobajew
- 👤 Regula Boeniger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 13:14
CPC Classifications
C; C08; C08G; C08G12/00; C08G12/02; C08G12/04; C08G12/06; C08G12/08; C12; C12N; C12N11/00; C12N11/02; C12N11/08; C12N11/089; C12N11/091; Y; Y10; Y10S; Y10S530/00; Y10S530/81; Y10S530/812; Y10S530/815; Y10S530/816; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31725; Y10T428/31768
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
23 words
A protein bonded to the condensation product obtained by reacting 1,3-phenylene-diamine with glutardialdehyde, said product comprising spherical, homogeneous particles capable of good filtration.
Claim 2
Dependent Claim
23 words
A protein bonded to the condensation product obtained by reacting 1,3-phenylene-diamine with glutardialdehyde, said product comprising spherical, homogeneous particles capable of good filtration.
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) | 1983-01-21 | 1983-07-23 | 1984-01-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-01-21 | 1987-07-23 | 1988-01-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-01-21 | 1991-07-23 | 1992-01-22 | $7700.00 | Window Closed / Lapsed |