US3516751A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Optical radiation pulse control receiver
Assignee: Individual
•
Filing: 1965-06-04
•
Granted: 1970-06-23
•
Expires: 1985-06-04
Abstract
No abstract record available.
Inventors
- 👤 Frank Fruengel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:15
CPC Classifications
H; H03; H03G; H03G3/00; H03G3/20; H03G3/30; H03G3/3084; G; G01; G01N; G01N21/00; G01N21/17; G01N21/47; G01N21/49; G01N21/53; G01N21/538; G01S; G01S17/00; G01S17/88; G01S17/95; G01S7/00; G01S7/02; G01S7/28; G01S7/285; G01S7/34; G01S7/48; G01S7/483; G01S7/486; G01S7/4861; Y; Y02; Y02A; Y02A90/00; Y02A90/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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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) | 1973-06-22 | 1973-12-22 | 1974-06-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-22 | 1977-12-22 | 1978-06-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-22 | 1981-12-22 | 1982-06-23 | $7700.00 | Window Closed / Lapsed |