US2869108A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sonic radio link wave height meter
Assignee: Individual
•
Filing: 1949-12-09
•
Granted: 1959-01-13
•
Expires: 1969-12-09
Abstract
No abstract record available.
Inventors
- 👤 Jr Louis E Smith
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:16
CPC Classifications
G; G01; G01S; G01S7/00; G01S7/003; G01S7/02; G01S7/40; G01S7/4052; G01S7/4082; G01S7/4091; Y; Y10; Y10S; Y10S367/00; Y10S367/902
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US283091A
Cited
US2156519A
Cited
US2447069A
Cited
US2422337A
Cited
US2361177A
Cited
US2465993A
Cited
US2418846A
Cited
US2449085A
Cited
US2567229A
Cited
US2465696A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-01-12 | 1962-07-14 | 1963-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-01-12 | 1966-07-14 | 1967-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-01-12 | 1970-07-14 | 1971-01-13 | $7700.00 | Window Closed / Lapsed |