US2870305A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Constructions for anemometers of the hot wire type
Assignee: Individual
•
Filing: 1955-04-04
•
Granted: 1959-01-20
•
Expires: 1975-04-04
Abstract
No abstract record available.
Inventors
- 👤 Ling Sung-Ching
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:37
CPC Classifications
G; G01; G01P; G01P5/00; G01P5/10; G01F; G01F1/00; G01F1/68; G01F1/684; G01F1/688; G01F1/69; G01F1/692
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2045640A
Cited
US2136991A
Cited
US2314877A
Cited
US2357473A
Cited
US2389615A
Cited
US2612047A
Cited
GB704162A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-19 | 1962-07-21 | 1963-01-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-19 | 1966-07-21 | 1967-01-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-19 | 1970-07-21 | 1971-01-20 | $7700.00 | Window Closed / Lapsed |