US4804748A
Expired / Lapsed
US
⏱️ 0.0 years remaining
7-deaza-2'-deoxyguanosine nucleotides
Assignee: Roche Diagnostics GmbH
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Filing: 1986-08-13
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Granted: 1989-02-14
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Expires: 2006-08-13
Abstract
Abstract The present invention provides 7-deaza-2'-deoxy-guanosine nucleotides of the general formula: <IMAGE> wherein R is a -PO3H2, -P2O6H3 or -P3O9H4 residue or an alkali metal, alkaline earth metal or ammonium salt of the phosphate groups. The present invention also provides processes for the preparation of these nucleotides and is also concerned with the use thereof in the sequencing of DNA.
Inventors
- 👤 Frank Seela
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 22:40
CPC Classifications
C; C07; C07H; C07H19/00; C07H19/02; C07H19/04; C07H19/16; C07H19/20; C07H19/14
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
16 words
Compound of the formula 7-deaza-2'-deoxyguanosine 5'-triphosphate and alkali earth metal, alkali metal and ammonium salts thereof.
Claim 2
Dependent Claim
16 words
Compound of the formula 7-deaza-2'-deoxyguanosine 5'-triphosphate and alkali earth metal, alkali metal and ammonium salts thereof.
Claim 3
Dependent Claim
2 words
7-deaza-2'-deoxyguanosine 5-'triphosphate.
Claim 4
Dependent Claim
2 words
7-deaza-2'-deoxyguanosine 5-'triphosphate.
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) | 1992-02-14 | 1992-08-15 | 1993-02-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-02-14 | 1996-08-15 | 1997-02-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-02-14 | 2000-08-15 | 2001-02-14 | $7700.00 | Window Closed / Lapsed |