Patent US2509397A successfully refreshed from Google Patents.
US2509397A
Expired / Lapsed
US
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Curved score display device
Assignee: Individual
•
Filing: 1945-06-08
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Granted: 1950-05-30
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Expires: 1965-06-08
Abstract
No abstract record available.
Inventors
- 👤 Richard E Paige
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 12:50
CPC Classifications
G; G09; G09F; G09F19/00; G09F19/02; G09F19/10; G09F1/00; G09F1/04; G09F1/06; G09F1/065
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US702033A
Cited
US1295465A
Cited
US1348899A
Cited
US2050894A
Cited
US2232088A
Cited
US2265679A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-05-29 | 1953-11-28 | 1954-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-29 | 1957-11-28 | 1958-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-29 | 1961-11-28 | 1962-05-30 | $7700.00 | Window Closed / Lapsed |