Patent US3041604A successfully refreshed from Google Patents.
US3041604A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Corner reflector formed of taut flat reflecting elements with resilient peripheral tesion frames
Assignee: Decca Record Co Ltd
•
Filing: 1957-08-15
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Granted: 1962-06-26
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Expires: 1977-08-15
Abstract
No abstract record available.
Inventors
- 👤 Collis Ronald Thomas Harry
- 👤 Welch Trevor William
- 👤 Cowlard Michael John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:55
CPC Classifications
H; H01; H01Q; H01Q15/00; H01Q15/14; H01Q15/18
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-06-25 | 1965-12-25 | 1966-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-25 | 1969-12-25 | 1970-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-25 | 1973-12-25 | 1974-06-26 | $7700.00 | Window Closed / Lapsed |