US2766653A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiant energy transmission and reflection analyzer with adjustable filter
Assignee: Motors Liquidation Co
•
Filing: 1952-01-11
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Granted: 1956-10-16
•
Expires: 1972-01-11
Abstract
No abstract record available.
Inventors
- 👤 Edward J Martin
- 👤 Robert N Frawley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:50
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/17; G01N21/25; G01N21/27; G01N21/274
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1374965A
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US1860967A
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US1919182A
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US1999023A
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US2166947A
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US2312010A
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DE747498C
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US2494440A
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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) | 1959-10-16 | 1960-04-16 | 1960-10-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-10-16 | 1964-04-16 | 1964-10-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-10-16 | 1968-04-16 | 1968-10-16 | $7700.00 | Window Closed / Lapsed |