US3430248A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Artificial dielectric material for use in microwave optics
Assignee: United States Department of the Army
•
Filing: 1966-01-06
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Granted: 1969-02-25
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Expires: 1986-01-06
Abstract
No abstract record available.
Inventors
- 👤 William M Lightbowne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:28
CPC Classifications
H; H01; H01Q; H01Q15/00; H01Q15/02; H01Q15/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2579324A
Cited
GB665747A
Cited
US2936453A
Cited
US3165750A
Cited
US3293649A
Cited
US3254345A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-02-25 | 1972-08-26 | 1973-02-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-02-25 | 1976-08-26 | 1977-02-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-02-25 | 1980-08-26 | 1981-02-25 | $7700.00 | Window Closed / Lapsed |