US2496339A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wind direction indicator
Assignee: Liquidometer Corp
•
Filing: 1945-11-15
•
Granted: 1950-02-07
•
Expires: 1965-11-15
Abstract
No abstract record available.
Inventors
- 👤 Giers Clarence A De
- 👤 Edelman Abraham
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:52
CPC Classifications
G; G01; G01F; G01F1/00; G01F1/68; G01F1/684; G01F1/6842; G01P; G01P13/00; G01P13/02; G01P5/00; G01P5/10; G01P5/12
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1291489A
Cited
DE448836C
Cited
US1841607A
Cited
US2237077A
Cited
US2255771A
Cited
US2214181A
Cited
US2415985A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-06 | 1953-08-08 | 1954-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-06 | 1957-08-08 | 1958-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-06 | 1961-08-08 | 1962-02-07 | $7700.00 | Window Closed / Lapsed |