US3546704A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Satellite tracking dish antenna with course and fine driving mechanism
Assignee: Plessey Overseas Ltd
•
Filing: 1967-07-28
•
Granted: 1970-12-08
•
Expires: 1987-07-28
Abstract
No abstract record available.
Inventors
- 👤 Ronald P Selby
- 👤 Clement J Richards
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:26
CPC Classifications
H; H01; H01Q; H01Q1/00; H01Q1/12; H01Q1/125; H01Q3/00; H01Q3/02; H01Q3/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2985881A
Cited
US3105969A
Cited
US3392398A
Cited
US3233475A
Cited
US3215391A
Cited
US3375523A
Cited
US3401390A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-12-07 | 1974-06-08 | 1974-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-07 | 1978-06-08 | 1978-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-07 | 1982-06-08 | 1982-12-08 | $7700.00 | Window Closed / Lapsed |