US2633747A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for measuring speeds and heat quantities in running media
Assignee: Telefonaktiebolaget LM Ericsson AB
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Filing: 1947-02-05
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Granted: 1953-04-07
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Expires: 1967-02-05
Abstract
No abstract record available.
Inventors
- 👤 Lindstrom Nils Gottfrid
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 00:40
CPC Classifications
G; G01; G01K; G01K17/00; G01K17/06; G01K17/08
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1640801A
Cited
DE400617C
Cited
US1903717A
Cited
US1996943A
Cited
FR799747A
Cited
FR806033A
Cited
US2446283A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-04-06 | 1956-10-06 | 1957-04-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-04-06 | 1960-10-06 | 1961-04-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-04-06 | 1964-10-06 | 1965-04-07 | $7700.00 | Window Closed / Lapsed |