Patent US20140083586A1 successfully refreshed from Google Patents.
US3528743A
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US
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Laser densitometer
Assignee: Northrop Grumman Guidance and Electronics Co Inc
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Filing: 1964-06-29
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Granted: 1970-09-15
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Expires: 1984-06-29
Abstract
No abstract record available.
Inventors
- 👤 Robert Emmett Scott
- 👤 Edwin Nathaniel Kaufman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:52
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/17; G01N21/47; G01N21/49; G01N21/53; G01N21/538
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US3312826A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-09-14 | 1974-03-16 | 1974-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-14 | 1978-03-16 | 1978-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-14 | 1982-03-16 | 1982-09-15 | $7700.00 | Window Closed / Lapsed |