Patent US2474918A successfully refreshed from Google Patents.
US2474918A
Expired / Lapsed
US
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Ranging system
Assignee: Stromberg Carlson Corp
•
Filing: 1945-07-30
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Granted: 1949-07-05
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Expires: 1965-07-30
Abstract
No abstract record available.
Inventors
- 👤 Frank H Slaymaker
- 👤 Willard F Meeker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:14
CPC Classifications
G; G01; G01S; G01S13/00; G01S13/02; G01S13/06; G01S13/08; G01S13/32; G01S13/34; G01S15/00; G01S15/02; G01S15/06; G01S15/08; G01S15/32; G01S15/34
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2011392A
Cited
US2253975A
Cited
GB546202A
Cited
US2371988A
Cited
US2321269A
Cited
US2405134A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-07-04 | 1953-01-03 | 1953-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-07-04 | 1957-01-03 | 1957-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-07-04 | 1961-01-03 | 1961-07-05 | $7700.00 | Window Closed / Lapsed |