US2464269A
Expired / Lapsed
US
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Method and means for controlling the polarization of radiant energy
Assignee: Raytheon Co
•
Filing: 1942-06-12
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Granted: 1949-03-15
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Expires: 1962-06-12
Abstract
No abstract record available.
Inventors
- 👤 Charles G Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:13
CPC Classifications
H; H01; H01Q; H01Q15/00; H01Q15/24; H01Q15/242; H01Q15/244; H01Q15/246; Y; Y10; Y10T; Y10T29/00; Y10T29/51; Y10T29/5124; Y10T29/5127; Y10T29/513
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1931458A
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US2064582A
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US2085406A
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US2142648A
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US2051537A
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US2130389A
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US2129669A
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US2223950A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-03-14 | 1952-09-13 | 1953-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-03-14 | 1956-09-13 | 1957-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-03-14 | 1960-09-13 | 1961-03-15 | $7700.00 | Window Closed / Lapsed |