Patent US3717258A successfully refreshed from Google Patents.
US3717258A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Assembly for the display and storage of science demonstration units or the like
Assignee: Individual
•
Filing: 1968-12-23
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Granted: 1973-02-20
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Expires: 1988-12-23
Abstract
Abstract A PLURALITY OF ELONGATED SUPPORT BRACKETS WITH A LOWER UPWARDLY EXTENDING FLANGE UPON WHICH IS SELECTIVELY ENGAGEABLY A PLURALITY OF SUBSTANTIALLY RECTANGULAR BASE MEMBERS CARRYING SCIENCE OR SIMILAR DEMONSTRATION EXHIBITS. D R A W I N G
Inventors
- 👤 J Mckinnon
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 11:22
CPC Classifications
G; G09; G09B; G09B23/00
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) | 1976-02-20 | 1976-08-21 | 1977-02-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-02-20 | 1980-08-21 | 1981-02-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-02-20 | 1984-08-21 | 1985-02-20 | $7700.00 | Window Closed / Lapsed |