US4415980B1
Expired / Lapsed
US
⏱️ 0.0 years remaining
US4415980B1 - - Google Patents
Assignee: Lockheed Martin Corp
•
Filing: 1981-03-02
•
Granted: 1987-12-29
•
Expires: 2001-03-02
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:32
CPC Classifications
G; G01; G01N; G01N23/00; G01N23/02; G01N23/06; G01N23/18; G01N23/083; G06; G06T; G06T7/00; G06T7/0002; G06T7/0004; G06T7/001; G06T2207/00; G06T2207/10; G06T2207/10116; G06T2207/20; G06T2207/20212; G06T2207/20224; G06T2207/30; G06T2207/30108; G06T2207/30164
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) | 1990-12-28 | 1991-06-29 | 1991-12-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-12-28 | 1995-06-29 | 1995-12-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-12-28 | 1999-06-29 | 1999-12-29 | $7700.00 | Window Closed / Lapsed |