US2417339A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recorder with magnetically positioned indicator
Assignee: Elsag Bailey Inc
•
Filing: 1943-06-23
•
Granted: 1947-03-11
•
Expires: 1963-06-23
Abstract
No abstract record available.
Inventors
- 👤 Rew E Wooley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 18:13
CPC Classifications
G; G01; G01D; G01D15/00; G01D15/24
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1174787A
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US1230740A
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US1455835A
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US2074117A
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US2124832A
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US2244653A
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US2226287A
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US2307912A
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US2288688A
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US2353740A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-03-10 | 1950-09-09 | 1951-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-03-10 | 1954-09-09 | 1955-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-03-10 | 1958-09-09 | 1959-03-11 | $7700.00 | Window Closed / Lapsed |