US2850704A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Waveguide coupling
Assignee: Raytheon Co
•
Filing: 1955-02-04
•
Granted: 1958-09-02
•
Expires: 1975-02-04
Abstract
No abstract record available.
Inventors
- 👤 Munushian Jack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:07
CPC Classifications
H; H01; H01J; H01J23/00; H01J23/36; H01J23/40; H01J23/42
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1945544A
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US2530171A
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US2624859A
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US2637775A
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US2730647A
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US2712614A
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US2768322A
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US2800605A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-09-01 | 1962-03-03 | 1962-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-09-01 | 1966-03-03 | 1966-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-09-01 | 1970-03-03 | 1970-09-02 | $7700.00 | Window Closed / Lapsed |