US2689938A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shock testing apparatus
Assignee: United States Department of the Army
•
Filing: 1950-09-05
•
Granted: 1954-09-21
•
Expires: 1970-09-05
Abstract
No abstract record available.
Inventors
- 👤 Richard C Larson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 09:13
CPC Classifications
G; G01; G01R; G01R31/00; G01R31/24; G01R31/25
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
FR450678A
Cited
US1465927A
Cited
US1708262A
Cited
FR727342A
Cited
US2476297A
Cited
US2496298A
Cited
US2610504A
Cited
US2537096A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-09-20 | 1958-03-22 | 1958-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-09-20 | 1962-03-22 | 1962-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-09-20 | 1966-03-22 | 1966-09-21 | $7700.00 | Window Closed / Lapsed |