US2516217A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Strip chart recorder
Assignee: Individual
•
Filing: 1944-12-09
•
Granted: 1950-07-25
•
Expires: 1964-12-09
Abstract
No abstract record available.
Inventors
- 👤 Keinath George
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 01:31
CPC Classifications
H; H04; H04L; H04L13/00; H04L13/02; H04L13/06; G; G01; G01D; G01D13/00; G01D13/02; G01D13/04; G01D13/08; G01D15/00; G01D15/06; G01D9/00; G01D9/28; G01D9/32; G01D9/34; G01D9/36; H04L17/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US367625A
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US1278964A
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US1352150A
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US1641199A
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US1598739A
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US1676848A
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GB310582A
Cited
US1784522A
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US1909142A
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US1825551A
Cited
US1967072A
Cited
US1933356A
Cited
US2151936A
Cited
US2232589A
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US2141974A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-07-24 | 1954-01-23 | 1954-07-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-24 | 1958-01-23 | 1958-07-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-24 | 1962-01-23 | 1962-07-25 | $7700.00 | Window Closed / Lapsed |