US3433782A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Separation and recovery of oligonucleotides
Assignee: Bayer Corp
•
Filing: 1965-12-27
•
Granted: 1969-03-18
•
Expires: 1985-12-27
Abstract
No abstract record available.
Inventors
- 👤 Thomas Harry Kreiser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:06
CPC Classifications
C; C07; C07H; C07H21/00; C07H21/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
50 words
A PROCESS FOR THE SEPARATION OF A MIXTURE OF OLIGONUCLEOTIDES WHICH COMPRISES CONTACTING AN AQUEOUS MIXTURE OF OLIGONUCLEOTIDES WITH AN ANION-EXCHANGE MATERIAL TO ADSORB ALL THE OLIGONUCLEOTIDE COMPONENTS OF SAID MIXTURE AND SELECTIVELY ELUTING THE INDIVIDUAL OLIGNUCLEOTIDE COMPONENTS FROM SAID ANION-EXCHANGE MATERIAL WITH A LITHIUM PERCHLORATE OR SODIUM PERCHLORATE SOLUTION.
Claim 2
Dependent Claim
50 words
A PROCESS FOR THE SEPARATION OF A MIXTURE OF OLIGONUCLEOTIDES WHICH COMPRISES CONTACTING AN AQUEOUS MIXTURE OF OLIGONUCLEOTIDES WITH AN ANION-EXCHANGE MATERIAL TO ADSORB ALL THE OLIGONUCLEOTIDE COMPONENTS OF SAID MIXTURE AND SELECTIVELY ELUTING THE INDIVIDUAL OLIGNUCLEOTIDE COMPONENTS FROM SAID ANION-EXCHANGE MATERIAL WITH A LITHIUM PERCHLORATE OR SODIUM PERCHLORATE SOLUTION.
References Cited (Backward Citations)
US3157635A
Cited
US3324110A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-03-17 | 1972-09-16 | 1973-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-03-17 | 1976-09-16 | 1977-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-03-17 | 1980-09-16 | 1981-03-18 | $7700.00 | Window Closed / Lapsed |