US3564731A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Planning and organizational aid
Assignee: Individual
•
Filing: 1967-05-29
•
Granted: 1971-02-23
•
Expires: 1987-05-29
Abstract
Abstract THE INVENTION RELATES TO AN AID FOR PLANNING AND ORGANIZATIONAL SCHEMES AND COMPRISES A TRACKED BOARD HAVING A GRIDWORK AND MANUALLY MOVABLE MEMBERS IN THE TRACKS FOR GIVING A PROGRESS COMPARISON WITH THE GRIDWORK.
Inventors
- 👤 Otto Weller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:16
CPC Classifications
G; G09; G09D; G09D1/00; G09F; G09F7/00; G09F7/02; G09F7/08
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) | 1974-02-22 | 1974-08-24 | 1975-02-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-02-22 | 1978-08-24 | 1979-02-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-02-22 | 1982-08-24 | 1983-02-23 | $7700.00 | Window Closed / Lapsed |