-
EP0031462
European procedure
Extract from the Register of European Patents
EP About this file: EP0031462
| EP0031462 - Differential charge sensing system for a four device MTL memory cell [Right-click to bookmark this link] | |||
| Former [1981/27] | Differential charge sensing system for an integrated memory using dual-capacitance cells coupled to two bit lines | ||
| [1984/10] | Status | No opposition filed within time limit Status updated on 08.01.1985 Database last updated on 22.08.2024 | Most recent event Tooltip | 28.09.2007 | Lapse of the patent in a contracting state Updated state(s): SE | published on 31.10.2007 [2007/44] | Applicant(s) | For all designated states International Business Machines Corporation New Orchard Road Armonk, NY 10504 / US | [N/P] |
| Former [1981/27] | For all designated states International Business Machines Corporation Old Orchard Road Armonk, N.Y. 10504 / US | Inventor(s) | 01 /
Gersbach, John Edwin 500 South Willard Street Burlington Vermont 05401 / US | 02 /
Kim, Ick Whan 157 Browns River Road Essex Junction Vermont 05452 / US | 03 /
Zehle, Adolf Mathias Rte 2 North Hero Grand Isle Vermont 05474 / US | [1981/27] | Representative(s) | Lewit, Leonard IBM Deutschland GmbH Schönaicher Strasse 220 D-7030 Böblingen / DE | [N/P] |
| Former [1981/27] | Lewit, Leonard, Dipl.-Ing. IBM Deutschland GmbH Schönaicher Strasse 220 D-7030 Böblingen / DE | Application number, filing date | 80107371.9 | 26.11.1980 | [1981/27] | Priority number, date | US19790108243 | 27.12.1979 Original published format: US 108243 | [1981/27] | Filing language | EN | Procedural language | EN | Publication | Type: | A2 Application without search report | No.: | EP0031462 | Date: | 08.07.1981 | Language: | EN | [1981/27] | Type: | A3 Search report | No.: | EP0031462 | Date: | 05.08.1981 | Language: | EN | [1981/31] | Type: | B1 Patent specification | No.: | EP0031462 | Date: | 07.03.1984 | Language: | EN | [1984/10] | Search report(s) | (Supplementary) European search report - dispatched on: | EP | 04.06.1981 | Classification | IPC: | G11C7/00, G11C11/40, G11C11/24 | [1981/27] | CPC: |
G11C11/4026 (EP,US);
G11C11/4113 (EP,US);
G11C11/413 (EP,US)
| Designated contracting states | DE, FR, GB, IT, NL, SE [1981/27] | Title | German: | Differenzial Ladungslesesystem für eine aus 4 Teile bestehende MTL Speicherzelle | [1984/10] | English: | Differential charge sensing system for a four device MTL memory cell | [1984/10] | French: | Système de détection différentielle de charge pour un dispositif à 4 composants formant une cellule de mémoire MTL | [1984/10] |
| Former [1981/27] | Differenzial Ladungslesesystem für einen integrierten Speicher mit an zwei Bitleitungen gekoppelten Dualkondensator-Speicherzellen | ||
| Former [1981/27] | Differential charge sensing system for an integrated memory using dual-capacitance cells coupled to two bit lines | ||
| Former [1981/27] | Système de détection différentielle de charge pour une mémoire intégrée composée de cellules à deux capacités et réunies à deux lignes de bit | File destroyed: | 15.01.2000 | Examination procedure | 28.08.1981 | Examination requested [1981/45] | 21.05.1982 | Despatch of a communication from the examining division (Time limit: M04) | 14.09.1982 | Reply to a communication from the examining division | 24.05.1983 | Despatch of communication of intention to grant (Approval: ) | 10.08.1983 | Communication of intention to grant the patent | 21.10.1983 | Fee for grant paid | 21.10.1983 | Fee for publishing/printing paid | Opposition(s) | 08.12.1984 | No opposition filed within time limit [1985/11] | Fees paid | Renewal fee | 16.11.1982 | Renewal fee patent year 03 | 22.11.1983 | Renewal fee patent year 04 |
| Opt-out from the exclusive Tooltip competence of the Unified Patent Court | See the Register of the Unified Patent Court for opt-out data | ||
| Responsibility for the accuracy, completeness or quality of the data displayed under the link provided lies entirely with the Unified Patent Court. | Lapses during opposition Tooltip | IT | 07.03.1984 | NL | 07.03.1984 | SE | 07.03.1984 | [2007/44] |
| Former [1999/42] | SE | 07.03.1983 | |
| IT | 07.03.1984 | ||
| NL | 07.03.1984 | ||
| Former [1985/23] | SE | 07.03.1983 | |
| NL | 07.03.1984 | ||
| Former [1984/33] | SE | 07.03.1983 | Documents cited: | Search | [A]US3421026 (STOPPER HERBERT); | US3540010 [ ] (HEIGHTLEY JOHN D, et al); | [AD]US3815106 (WIEDMANN S); | [A]US4023148 (HEUBER KLAUS, et al); | US4032902 [ ] (HERNDON WILLIAM H); | US4070656 [ ] (HEUBER KLAUS, et al); | [A]US4090255 (BERGER HORST H, et al); | US4110842 [ ] (SARKISSIAN VAHE A, et al); | [P]EP0013302 (IBM [US]); | [E]EP0021143 (IBM [US]); | [E]EP0020995 (IBM [US]) | [ ] - IEEE JOURNAL OF SOLID-STATE CIRCUITS, Vol. SC-2, No. 4, December 1967 New York, US J.E. IWERSEN et al. "Beam-lead sealed-junction semiconductor memory with minimal cell complexity", pages 196-201 | [ ] - IEEE JOURNAL OF SOLID-STATE CIRCUITS, Vol. SC-13, No. 5, October 1978 New York, US KAWARADA et al. "A fast 7.5 ns access 1K-Bit RAM for cachememory systems", pages 656-663 | [P] - IEEE INTERNATIONAL SOLID-STATE CIRCUITS CONFERENCE, February 1980, New York, USA WIEDMANN et al. "A 16Kb static MTL/I2L memory chip", pages 222-223, 276. | [A] - IEEE SYMPOSIUM ON APPLICATIONS OF MICROELECTRONICS, Southampton, 21-23 September 1965, London, GB MATTHEWS: "Microelectronic integrated system cells", pages 30/1 to 30/24 |