Patent US3393913A successfully refreshed from Google Patents.
US3393913A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Game poles with detachable boundary markers
Assignee: Individual
•
Filing: 1965-04-15
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Granted: 1968-07-23
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Expires: 1985-04-15
Abstract
No abstract record available.
Inventors
- 👤 Safina Richard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 23:06
CPC Classifications
A; A63; A63B; A63B67/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US669826A
Cited
US951484A
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US1280082A
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US3084941A
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US3145991A
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US3190657A
Cited
US3226118A
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US3345068A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-07-23 | 1972-01-22 | 1972-07-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-23 | 1976-01-22 | 1976-07-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-23 | 1980-01-22 | 1980-07-23 | $7700.00 | Window Closed / Lapsed |