Patent US2729976A successfully refreshed from Google Patents.
US2729976A
Expired / Lapsed
US
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Thermal flowmeter
Assignee: Individual
•
Filing: 1953-01-06
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Granted: 1956-01-10
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Expires: 1973-01-06
Abstract
No abstract record available.
Inventors
- 👤 Laub John Harry
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:37
CPC Classifications
H; H04; H04B; H04B1/00; H04B1/06; H04B1/10; H04B1/12; F; F28; F28F; F28F27/00; G; G01; G01F; G01F1/00; G01F1/68; G01F1/684; G01F1/6847; G01F5/00; G01P; G01P5/00; G01P5/18; F16; F16L; F16L2101/00; F16L2101/30; F28F2250/00; F28F2250/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-01-09 | 1959-07-11 | 1960-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-01-09 | 1963-07-11 | 1964-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-01-09 | 1967-07-11 | 1968-01-10 | $7700.00 | Window Closed / Lapsed |