US2499520A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Distance measuring device
Assignee: Raytheon Co
•
Filing: 1947-01-31
•
Granted: 1950-03-07
•
Expires: 1967-01-31
Abstract
No abstract record available.
Inventors
- 👤 Peter M Modlowski
- 👤 Arnold M Skudre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 18:58
CPC Classifications
G; G01; G01S; G01S15/00; G01S15/02; G01S15/06; G01S15/08; G01S15/10; G01S15/14; G01S13/00; G01S13/02; G01S13/06; G01S13/08; G01S13/10; G01S13/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1858931A
Cited
US2131993A
Cited
US2101076A
Cited
GB406592A
Cited
US2012837A
Cited
US2275930A
Cited
US2303453A
Cited
US2301196A
Cited
US2346093A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-03-06 | 1953-09-05 | 1954-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-03-06 | 1957-09-05 | 1958-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-03-06 | 1961-09-05 | 1962-03-07 | $7700.00 | Window Closed / Lapsed |