US2442630A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Resistance transmitter
Assignee: Liquidometer Corp
•
Filing: 1945-09-24
•
Granted: 1948-06-01
•
Expires: 1965-09-24
Abstract
No abstract record available.
Inventors
- 👤 Wickesser Arthur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 01:55
CPC Classifications
G; G01; G01D; G01D5/00; G01D5/12; G01D5/14; G01D5/16; G01D5/165; G01D5/1655; G01F; G01F23/00; G01F23/30; G01F23/32; G01F23/36; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20207; Y10T74/20213
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2396244A
Cited
US2391058A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-06-01 | 1951-12-01 | 1952-06-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-06-01 | 1955-12-01 | 1956-06-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-06-01 | 1959-12-01 | 1960-06-01 | $7700.00 | Window Closed / Lapsed |