US2898401A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oscillograph recorder
Assignee: HALLER RAYMOND AND BROWN Inc
•
Filing: 1955-05-19
•
Granted: 1959-08-04
•
Expires: 1975-05-19
Abstract
No abstract record available.
Inventors
- 👤 John L Mclucas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 08:07
CPC Classifications
G; G01; G01R; G01R13/00; G01R13/20; G01R13/204
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1570490A
Cited
US2176847A
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US2113184A
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US2183717A
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US2203352A
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US2193606A
Cited
US2304814A
Cited
US2465849A
Cited
US2387832A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-03 | 1963-02-02 | 1963-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-03 | 1967-02-02 | 1967-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-03 | 1971-02-02 | 1971-08-04 | $7700.00 | Window Closed / Lapsed |