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EP0118178
European procedure
Extract from the Register of European Patents
EP About this file: EP0118178
| EP0118178 - Offset balancing method and apparatus for a DC amplifier [Right-click to bookmark this link] | Status | No opposition filed within time limit Status updated on 25.01.1988 Database last updated on 08.04.2026 | Most recent event Tooltip | 25.01.1988 | No opposition filed within time limit | published on 16.03.1988 [1988/11] | Applicant(s) | For all designated states TEKTRONIX, INC. Tektronix Industrial Park D/S Y3-121 4900 S.W. Griffith Drive P.O. Box 500 Beaverton Oregon 97077 / US | [N/P] |
| Former [1984/37] | For all designated states TEKTRONIX, INC. Tektronix Industrial Park D/S Y3-121 4900 S.W. Griffith Drive P.O. Box 500 Beaverton Oregon 97077 / US | Inventor(s) | 01 /
Bristol, Lloyd Rodney 9580 S.W. O'Mara Tigard Oregon 97223 / US | [1984/37] | Representative(s) | Wright, Peter David John, et al R.G.C. Jenkins & Co. 26 Caxton Street London SW1H 0RJ / GB | [1984/37] | Application number, filing date | 84300414.4 | 24.01.1984 | [1984/37] | Priority number, date | US19830464284 | 07.02.1983 Original published format: US 464284 | [1984/37] | Filing language | EN | Procedural language | EN | Publication | Type: | A1 Application with search report | No.: | EP0118178 | Date: | 12.09.1984 | Language: | EN | [1984/37] | Type: | B1 Patent specification | No.: | EP0118178 | Date: | 25.03.1987 | Language: | EN | [1987/13] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 29.06.1984 | Classification | IPC: | H03F3/45, H03F1/30 | [1984/37] | CPC: |
H03G1/0023 (EP,US);
H03F1/304 (EP,US);
H03F3/45103 (EP,US);
H03F3/45618 (EP,US);
H03F3/45623 (EP,US);
H03F3/45977 (EP,US);
| Designated contracting states | DE, FR, GB, NL [1984/37] | Title | German: | Verfahren und Anordnung zum Beseitigen der Nullpunktdrift eines Gleichstromverstärkers | [1984/37] | English: | Offset balancing method and apparatus for a DC amplifier | [1984/37] | French: | Procédé et dispositif pour compenser le décalage de zéro dans un amplificateur à courant continu | [1984/37] | Examination procedure | 02.11.1984 | Examination requested [1985/03] | 06.11.1985 | Despatch of a communication from the examining division (Time limit: M06) | 19.03.1986 | Reply to a communication from the examining division | 12.05.1986 | Despatch of communication of intention to grant (Approval: ) | 29.07.1986 | Communication of intention to grant the patent | 01.10.1986 | Fee for grant paid | 01.10.1986 | Fee for publishing/printing paid | Opposition(s) | 29.12.1987 | No opposition filed within time limit [1988/11] | Fees paid | Renewal fee | 16.12.1985 | Renewal fee patent year 03 | 19.12.1986 | Renewal fee patent year 04 |
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| Responsibility for the accuracy, completeness or quality of the data displayed under the link provided lies entirely with the Unified Patent Court. | Documents cited: | Search | [A] REVIEW SCIENTIFIC INSTRUMENTS, vol. 50, no. 7, July 1979 B. BROERSEN et al. "Differential automatic zero-adjusting amplifier", pages 897-899 [A] |