US2493912A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Distance measuring device
Assignee: Individual
•
Filing: 1948-03-22
•
Granted: 1950-01-10
•
Expires: 1968-03-22
Abstract
No abstract record available.
Inventors
- 👤 Jackson M Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 14:31
CPC Classifications
G; G01; G01B; G01B3/00; G01B3/12; G01C; G01C3/00; G01C3/02; G06; G06M; G06M1/00; G06M1/04; G06M1/06
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) | 1953-01-09 | 1953-07-11 | 1954-01-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-01-09 | 1957-07-11 | 1958-01-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-01-09 | 1961-07-11 | 1962-01-10 | $7700.00 | Window Closed / Lapsed |