US3452989A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Chance controlled construction game apparatus
Assignee: Glass Marvin and Associates
•
Filing: 1967-08-10
•
Granted: 1969-07-01
•
Expires: 1987-08-10
Abstract
No abstract record available.
Inventors
- 👤 Hans Jernstrom
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 14:02
CPC Classifications
A; A63; A63H; A63H33/00; A63H33/04; A63H33/10; A63H33/108
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US653303A
Cited
US1258932A
Cited
DE326402C
Cited
US1342884A
Cited
US1953631A
Cited
FR1069155A
Cited
US3175825A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-06-30 | 1972-12-30 | 1973-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-06-30 | 1976-12-30 | 1977-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-06-30 | 1980-12-30 | 1981-07-01 | $7700.00 | Window Closed / Lapsed |