US3440132A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ceramic plastic composite material for radomes
Assignee: United States Department of the Navy
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Filing: 1964-12-02
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Granted: 1969-04-22
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Expires: 1984-12-02
Abstract
No abstract record available.
Inventors
- 👤 Francis J Koubek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:16
CPC Classifications
B; B64; B64C; B64C1/00; B64C1/36; B29; B29C; B29C70/00; B29C70/003; B29K; B29K2309/00; B29K2309/08; Y; Y02; Y02T; Y02T50/00; Y02T50/40; Y10; Y10T; Y10T442/00; Y10T442/30; Y10T442/3472; Y10T442/3528; Y10T442/3569; Y10T442/3577; Y10T442/3585; Y10T442/3602; Y10T442/3699
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-04-21 | 1972-10-21 | 1973-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-21 | 1976-10-21 | 1977-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-21 | 1980-10-21 | 1981-04-22 | $7700.00 | Window Closed / Lapsed |