US3015899A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Three dimensional display device
Assignee: HOPP PRESS Inc
•
Filing: 1960-01-29
•
Granted: 1962-01-09
•
Expires: 1980-01-29
Abstract
No abstract record available.
Inventors
- 👤 Robert H Ensign
- 👤 Jr Danforth Cardozo
- 👤 Woods George
- 👤 Immermann Milton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:12
CPC Classifications
G; G09; G09F; G09F7/00; G09F15/00; G09F15/0068
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1478511A
Cited
US1480606A
Cited
US2407592A
Cited
US2772494A
Cited
US2913840A
Cited
US2802291A
Cited
US2785487A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-01-08 | 1965-07-10 | 1966-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-08 | 1969-07-10 | 1970-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-08 | 1973-07-10 | 1974-01-09 | $7700.00 | Window Closed / Lapsed |