Patent US4344327B1 successfully refreshed from Google Patents.
US4344327B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronic scanning ultrasonic diagnostic system
Assignee: Hitachi Ltd
•
Filing: 1980-12-23
•
Granted: 1994-05-03
•
Expires: 2000-12-23
Abstract
No abstract record available.
Inventors
- 👤 Yoshihiro Yoshikawa
- 👤 Takao Katabami
- 👤 Katsumi Fujinaga
- 👤 Yoshiaki Kobayashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:26
CPC Classifications
G; G01; G01S; G01S7/00; G01S7/52; G01S7/52017; G01S7/52085; B; B82; B82Y; B82Y15/00; G01N; G01N29/00; G01N29/04; G01N29/06; G01N29/0609; G01N29/0645; G01N29/22; G01N29/26; G01N29/262; G01S15/00; G01S15/88; G01S15/89; G01S15/8906; G01S15/8909; G01S15/8915; G01S15/892; G01S15/8927; G10; G10K; G10K11/00; G10K11/18; G10K11/26; G10K11/34; G10K11/341; G10K11/345
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-05-02 | 1997-11-01 | 1998-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-05-02 | 2001-11-01 | 2002-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-05-02 | 2005-11-01 | 2006-05-03 | $7700.00 | Window Closed / Lapsed |