US2726074A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Acceleration measuring system
Assignee: AT&T Inc
•
Filing: 1950-05-19
•
Granted: 1955-12-06
•
Expires: 1970-05-19
Abstract
No abstract record available.
Inventors
- 👤 Raymond W Ketchledge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:19
CPC Classifications
G; G01; G01P; G01P15/00; G01P15/02; G01P15/08; Y; Y10; Y10S; Y10S73/00; Y10S73/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US636844A
Cited
FR719762A
Cited
US2319940A
Cited
US2359158A
Cited
US2371626A
Cited
US2513340A
Cited
US2554512A
Cited
US2648055A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1958-12-05 | 1959-06-06 | 1959-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1962-12-05 | 1963-06-06 | 1963-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1966-12-05 | 1967-06-06 | 1967-12-06 | $7700.00 | Window Closed / Lapsed |