US2444041A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wave meter
Assignee: Unisys Corp
•
Filing: 1942-02-25
•
Granted: 1948-06-29
•
Expires: 1962-02-25
Abstract
No abstract record available.
Inventors
- 👤 Arthur E Harrison
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:56
CPC Classifications
G; G01; G01R; G01R23/00; G01R23/02; G01R23/04
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1305202A
Cited
US2086615A
Cited
US2106713A
Cited
US2245138A
Cited
US2218923A
Cited
US2235521A
Cited
US2304186A
Cited
US2349440A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-06-29 | 1951-12-29 | 1952-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-06-29 | 1955-12-29 | 1956-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-06-29 | 1959-12-29 | 1960-06-29 | $7700.00 | Window Closed / Lapsed |