US 4795699

Patent Overview: US4795699A — "T7 DNA polymerase"

Bibliographic data (from supplied text)

• Patent number: US4795699A
• Title: T7 DNA polymerase
• Inventors: Stanley Tabor; Charles C. Richardson
• Original/current assignee: Harvard University (assigned to President and Fellows of Harvard College, a charitable corp.)
• Application number: US07/003,227
• Priority date / filing date: 1987-01-14
• Publication (grant) date: 1989-01-03
• Legal status: Expired – Lifetime; anticipated expiration 2007-01-14

Purpose and plain-language scope
The patent concerns T7 DNA polymerase and methods involving it. The keyword and classification data indicate the disclosure centers on DNA polymerase, DNA, exonuclease, nucleotides/triphosphates, primers, and DNA sequencing, including chain-termination-type sequencing using dideoxynucleotides and dITP. The description references reagents and conditions such as dATP, dGTP, thioredoxin, dithiothreitol, sodium chloride, EDTA, glycerol, and incubation/annealing steps.

In plain terms, the patent appears directed to a T7 DNA polymerase preparation and to methods of using it to synthesize DNA from a primer on a template, with applications in DNA sequencing. The excerpt's prior-art keywords (polymerase, DNA, reaction, primer, gene) are consistent with this focus.

What the excerpt does not establish
The supplied text includes bibliographic, family, litigation-link, and keyword/classification data, but not the actual claims, abstract, or full description. Therefore this overview cannot state the precise claimed scope, claim limitations, dependencies, or the specific novelty asserted over prior art. It also does not establish enablement details, exact reagent concentrations, or the full experimental protocols.

Per operating instructions, no litigation, ownership-transfer, validity, or prior-art analysis is offered here.

Source: https://patents.google.com/patent/[US4795699](/patent/US4795699)/en