US2771593A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Error position indicator for target manifestation device
Assignee: International Business Machines Corp
•
Filing: 1954-01-20
•
Granted: 1956-11-20
•
Expires: 1974-01-20
Abstract
No abstract record available.
Inventors
- 👤 Robert N Straehl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:34
CPC Classifications
G; G01; G01S; G01S3/00; G01S3/78; G01S3/782
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1551393A
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US1782294A
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US2413300A
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US2604529A
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US2692377A
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US2520924A
Cited
US2679033A
Cited
US7027393B1
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-11-20 | 1960-05-21 | 1960-11-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-20 | 1964-05-21 | 1964-11-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-20 | 1968-05-21 | 1968-11-20 | $7700.00 | Window Closed / Lapsed |