US2598552A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Measuring apparatus having inverted pendulum indicator
Assignee: Individual
•
Filing: 1946-11-05
•
Granted: 1952-05-27
•
Expires: 1966-11-05
Abstract
No abstract record available.
Inventors
- 👤 Willem J B Jansen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:33
CPC Classifications
G; G01; G01B; G01B3/00; G01B3/22; Y; Y10; Y10T; Y10T74/00; Y10T74/20; Y10T74/20006
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US353561A
Cited
US447276A
Cited
US496272A
Cited
US523404A
Cited
US526105A
Cited
US1154396A
Cited
US1264910A
Cited
US1300513A
Cited
US1661214A
Cited
US1708900A
Cited
US1801812A
Cited
US2254242A
Cited
US2264640A
Cited
US2420711A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-05-27 | 1955-11-26 | 1956-05-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-05-27 | 1959-11-26 | 1960-05-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-05-27 | 1963-11-26 | 1964-05-27 | $7700.00 | Window Closed / Lapsed |