US2643869A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Accelerometer
Assignee: Individual
•
Filing: 1948-01-15
•
Granted: 1953-06-30
•
Expires: 1968-01-15
Abstract
No abstract record available.
Inventors
- 👤 Clark James
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:00
CPC Classifications
G; G01; G01P; G01P15/00; G01P15/02; G01P15/08; G01P15/11; Y; Y10; Y10S; Y10S33/00; Y10S33/05
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
DE316171C
Cited
US1939898A
Cited
US2193910A
Cited
US2210970A
Cited
US2338732A
Cited
US2430757A
Cited
US2440605A
Cited
US2435630A
Cited
US2459155A
Cited
US2510073A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-06-29 | 1956-12-29 | 1957-06-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-06-29 | 1960-12-29 | 1961-06-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-06-29 | 1964-12-29 | 1965-06-30 | $7700.00 | Window Closed / Lapsed |