US2874019A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Librascope Inc
•
Filing: 1954-09-16
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Granted: 1959-02-17
•
Expires: 1974-09-16
Abstract
No abstract record available.
Inventors
- 👤 Clarence R Linsley
- 👤 David L Pickens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 10:34
CPC Classifications
G; G06; G06G; G06G7/00; G06G7/04; G06K; G06K15/00; G06K15/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US135293A
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US1285049A
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US1692611A
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US1798983A
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US2348923A
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US2392487A
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US2424118A
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US2464708A
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US2566546A
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US2569328A
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US2606093A
Cited
US2626151A
Cited
US2667402A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-02-16 | 1962-08-18 | 1963-02-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-16 | 1966-08-18 | 1967-02-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-16 | 1970-08-18 | 1971-02-17 | $7700.00 | Window Closed / Lapsed |