US2411041A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Relative humidity meter
Assignee: Individual
•
Filing: 1942-08-07
•
Granted: 1946-11-12
•
Expires: 1962-08-07
Abstract
No abstract record available.
Inventors
- 👤 Kahn Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:51
CPC Classifications
G; G01; G01N; G01N25/00; G01N25/56; G01N25/62; G01N25/64; Y; Y10; Y10S; Y10S116/00; Y10S116/23
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1949-11-11 | 1950-05-13 | 1950-11-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-11-11 | 1954-05-13 | 1954-11-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-11-11 | 1958-05-13 | 1958-11-12 | $7700.00 | Window Closed / Lapsed |