Patent US3555715A successfully refreshed from Google Patents.
US3555715A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Modular display device
Assignee: Individual
•
Filing: 1969-03-20
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Granted: 1971-01-19
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Expires: 1989-03-20
Abstract
Abstract A MODULAR DISPLAY DEVICE CAPABLE OF EXTRUSION AND ADAPTED FOR USE ALONE OR IN INTERLOCKING ARRANGEMENT WITH LIKE DEVICES TO CREATE A BASE ASSEMBLY FOR SUPPORTING DISPLAY ADVERTISING MATERIALS IN VERTICAL AND HORIZONTAL DISPOSITIONS.
Inventors
- 👤 Irving Wardell Shell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:29
CPC Classifications
G; G09; G09F; G09F7/00; G09F7/02; G09F7/08; G09F15/00; G09F15/0068
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) | 1974-01-18 | 1974-07-20 | 1975-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-18 | 1978-07-20 | 1979-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-18 | 1982-07-20 | 1983-01-19 | $7700.00 | Window Closed / Lapsed |