US3437873A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Display system sector selection and amplification means
Assignee: Bunker Ramo Corp
•
Filing: 1967-01-20
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Granted: 1969-04-08
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Expires: 1987-01-20
Abstract
No abstract record available.
Inventors
- 👤 Carl A Eggert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 17:01
CPC Classifications
G; G01; G01R; G01R13/00; G01R13/20; G01R13/22; G01R13/32; G09; G09G; G09G1/00; G09G1/06; G09G1/08; H; H04; H04N; H04N3/00; H04N3/10; H04N3/16; H04N3/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3011164A
Cited
US3294981A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-04-07 | 1972-10-07 | 1973-04-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-04-07 | 1976-10-07 | 1977-04-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-04-07 | 1980-10-07 | 1981-04-08 | $7700.00 | Window Closed / Lapsed |