US2859956A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Liquid flow recorder
Assignee: Individual
•
Filing: 1956-04-27
•
Granted: 1958-11-11
•
Expires: 1976-04-27
Abstract
No abstract record available.
Inventors
- 👤 Meriam Charles
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:52
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/20; A61B5/207; A61B5/208
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US417357A
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US669584A
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US991343A
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US1235260A
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US1236381A
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US1262391A
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US1726126A
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US2176886A
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US2251352A
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US2746832A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-11-10 | 1962-05-12 | 1962-11-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-10 | 1966-05-12 | 1966-11-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-10 | 1970-05-12 | 1970-11-11 | $7700.00 | Window Closed / Lapsed |