Patent US2668171A successfully refreshed from Google Patents.
Patent USRE25756E successfully refreshed from Google Patents.
USRE25756E
Expired / Lapsed
US
⏱️ 0.0 years remaining
Visual cue generator
Assignee: —
•
Filing: —
•
Granted: 1965-04-06
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Expires: 1982-04-06
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 13:30
CPC Classifications
H; H04; H04N; H04N5/00; H04N5/222; H04N5/262; H04N5/272; H04N5/275; G; G01; G01S; G01S1/00; G01S1/02; G01S7/00; G01S7/02; G01S7/04; G01S7/06; G01S7/10; G09; G09B; G09B9/00; G09B9/02; G09B9/08; G09B9/30; G09B9/301
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-04-05 | 1968-10-05 | 1969-04-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-05 | 1972-10-05 | 1973-04-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-05 | 1976-10-05 | 1977-04-06 | $7700.00 | Window Closed / Lapsed |