US3544998A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plasma coated antenna
Assignee: ANDRE M MESSIAEN
•
Filing: 1967-12-08
•
Granted: 1970-12-01
•
Expires: 1987-12-08
Abstract
No abstract record available.
Inventors
- 👤 Paul E Vandenplas
- 👤 Andre M Messiaen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:52
CPC Classifications
H; H01; H01Q; H01Q19/00; H01Q19/06; H01Q19/09
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2525624A
Cited
US2641702A
Cited
US2615126A
Cited
US2703363A
Cited
US2968037A
Cited
US3080523A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-30 | 1974-06-01 | 1974-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-30 | 1978-06-01 | 1978-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-30 | 1982-06-01 | 1982-12-01 | $7700.00 | Window Closed / Lapsed |