US3549239A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical signal processor
Assignee: RTX Corp
•
Filing: 1968-11-19
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Granted: 1970-12-22
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Expires: 1988-11-19
Abstract
No abstract record available.
Inventors
- 👤 Michael J Brienza
- 👤 Edmond B Treacy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 01:08
CPC Classifications
G; G02; G02B; G02B27/00; G02B27/42; G02B27/4272; G02B27/4277; H; H01; H01S; H01S3/00; H01S3/005; H01S3/0057; Y; Y10; Y10S; Y10S359/00; Y10S359/90
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) | 1973-12-21 | 1974-06-22 | 1974-12-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-12-21 | 1978-06-22 | 1978-12-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-12-21 | 1982-06-22 | 1982-12-22 | $7700.00 | Window Closed / Lapsed |