US3490405A
Expired / Lapsed
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Method and apparatus for making curved reflectors
Assignee: National Aeronautics and Space Administration
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Filing: 1967-08-23
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Granted: 1970-01-20
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Expires: 1987-08-23
Abstract
No abstract record available.
Inventors
- 👤 Austin F Reader
- 👤 Walter E Russell
- 👤 Edward A Werner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 22:54
CPC Classifications
G; G02; G02B; G02B5/00; G02B5/08; G02B5/10; B; B21; B21D; B21D53/00; B21D53/88; B21D53/883; F; F24; F24S; F24S23/00; F24S23/70; F24S23/71; F24S23/82; F24S2023/87; F24S2023/874; Y; Y02; Y02E; Y02E10/00; Y02E10/40; Y10; Y10S; Y10S359/00; Y10S359/90; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49861
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) | 1973-01-19 | 1973-07-21 | 1974-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-01-19 | 1977-07-21 | 1978-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-01-19 | 1981-07-21 | 1982-01-20 | $7700.00 | Window Closed / Lapsed |