US2994079A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Signal display apparatus
Assignee: DESIGNERS FOR INDUSTRY
•
Filing: 1956-12-03
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Granted: 1961-07-25
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Expires: 1976-12-03
Abstract
No abstract record available.
Inventors
- 👤 Stanley J Obloy
- 👤 Kenneth R Cukras
- 👤 Thomas J Callaghan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:59
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/88; G01S13/95; Y; Y02; Y02A; Y02A90/00; Y02A90/10
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) | 1964-07-24 | 1965-01-23 | 1965-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-24 | 1969-01-23 | 1969-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-24 | 1973-01-23 | 1973-07-25 | $7700.00 | Window Closed / Lapsed |