US2494579A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Differential transformer pickup unit
Assignee: Individual
•
Filing: 1948-08-19
•
Granted: 1950-01-17
•
Expires: 1968-08-19
Abstract
No abstract record available.
Inventors
- 👤 Pimlott John Rex
- 👤 Dawson Samuel Edward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 18:21
CPC Classifications
G; G01; G01D; G01D5/00; G01D5/12; G01D5/14; G01D5/20; G01B; G01B7/00; G01B7/02; G01L; G01L9/00; G01L9/10; Y; Y10; Y10S; Y10S177/00; Y10S177/10; Y10S33/00; Y10S33/05
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-01-16 | 1953-07-18 | 1954-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-16 | 1957-07-18 | 1958-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-16 | 1961-07-18 | 1962-01-17 | $7700.00 | Window Closed / Lapsed |