US2499605A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and apparatus for detecting waves
Assignee: Individual
•
Filing: 1943-02-25
•
Granted: 1950-03-07
•
Expires: 1963-02-25
Abstract
No abstract record available.
Inventors
- 👤 Nicolson Alexander Mclean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:54
CPC Classifications
H; H04; H04B; H04B11/00; G; G01; G01V; G01V1/00; G01V1/003; G01V1/16
Claims Analysis
Total Claims: 0
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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 |