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US2915843A
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Assignee: PRISM SIGNS Inc
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Filing: 1956-02-13
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Granted: 1959-12-08
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Expires: 1976-02-13
Abstract
No abstract record available.
Inventors
- 👤 Pabst Rudolf
- 👤 William E Thomas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 20:32
CPC Classifications
G; G09; G09F; G09F19/00; G09F19/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2371172A
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US1219731A
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US1296246A
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US2151236A
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US2271196A
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US2419216A
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US2432896A
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US2706930A
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US2726573A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-12-07 | 1963-06-08 | 1963-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-07 | 1967-06-08 | 1967-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-07 | 1971-06-08 | 1971-12-08 | $7700.00 | Window Closed / Lapsed |