Patent US3930251A successfully refreshed from Google Patents.
Patent US2050629A successfully refreshed from Google Patents.
US2050629A
Expired / Lapsed
US
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Electric telemetering system
Assignee: Leeds and Northrup Co
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Filing: 1934-05-11
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Granted: 1936-08-11
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Expires: 1954-05-11
Abstract
No abstract record available.
Inventors
- 👤 John F Quercau
- 👤 Jr Albert J Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:28
CPC Classifications
G; G01; G01G; G01G7/00; G01G7/02; G01F; G01F23/00; G01F23/30; G01F23/56; G01F23/62; Y; Y10; Y10S; Y10S177/00; Y10S177/10; Y10S33/00; Y10S33/05
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) | 1939-08-11 | 1940-02-10 | 1940-08-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1943-08-11 | 1944-02-10 | 1944-08-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1947-08-11 | 1948-02-10 | 1948-08-11 | $7700.00 | Window Closed / Lapsed |