US4596144B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acoustic ranging system
Assignee: Siemens Canada Ltd
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Filing: 1985-03-19
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Granted: 1995-10-10
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Expires: 2005-03-19
Abstract
No abstract record available.
Inventors
- 👤 Stanley Panton
- 👤 Steven J Woodward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:08
CPC Classifications
G; G01; G01S; G01S7/00; G01S7/52; G01S7/523; G01S7/526; G01S7/527; G01F; G01F23/00; G01F23/22; G01F23/28; G01F23/296; G01F23/2962; G01N; G01N2291/00; G01N2291/02; G01N2291/028; G01N2291/02836
Claims Analysis
Total Claims: 0
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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) | 1998-10-09 | 1999-04-10 | 1999-10-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2002-10-09 | 2003-04-10 | 2003-10-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2006-10-09 | 2007-04-10 | 2007-10-10 | $7700.00 | Window Closed / Lapsed |