US4259016B1
Expired / Lapsed
US
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Interferometer with a single-mode waveguide coil
Assignee: Northrop Grumman Litef GmbH
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Filing: 1979-01-11
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Granted: 2000-07-04
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Expires: 1999-01-11
Abstract
No abstract record available.
Inventors
- 👤 Gerhard Schiffner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:54
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/24; G02B6/26; G02B6/28; G02B6/2804; G02B6/2821; G01; G01B; G01B11/00; G01B11/02; G01C; G01C19/00; G01C19/58; G01C19/64; G01C19/72; G01C19/721; G01J; G01J9/00; G01J9/02; Y; Y10; Y10S; Y10S359/00; Y10S359/90
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) | 2003-07-04 | 2004-01-03 | 2004-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2007-07-04 | 2008-01-03 | 2008-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2011-07-04 | 2012-01-03 | 2012-07-04 | $7700.00 | Window Closed / Lapsed |