US2447349A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ship's log indicator
Assignee: CONTROL INSTR CO Inc
•
Filing: 1944-11-04
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Granted: 1948-08-17
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Expires: 1964-11-04
Abstract
No abstract record available.
Inventors
- 👤 Lehde Henry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 23:16
CPC Classifications
G; G01; G01P; G01P5/00; G01P5/14; G01P5/16; G01P5/17
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1202052A
Cited
US1052387A
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US1096883A
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US1296947A
Cited
GB248384A
Cited
US1968539A
Cited
US2107976A
Cited
US2212085A
Cited
US2131486A
Cited
US2380177A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-08-17 | 1952-02-16 | 1952-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-08-17 | 1956-02-16 | 1956-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-08-17 | 1960-02-16 | 1960-08-17 | $7700.00 | Window Closed / Lapsed |