US2810964A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for determining the positions of the ilii in relation to each other
Assignee: Individual
•
Filing: 1955-07-12
•
Granted: 1957-10-29
•
Expires: 1975-07-12
Abstract
No abstract record available.
Inventors
- 👤 Richard M Engelbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:44
CPC Classifications
A; A61; A61B; A61B5/00; A61B5/103; A61B5/107
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US889224A
Cited
AT45502B
Cited
US1209345A
Cited
US2053810A
Cited
US2081133A
Cited
US2063922A
Cited
US2029067A
Cited
DE742944C
Cited
US2349664A
Cited
FR1043979A
Cited
DE905125C
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-10-28 | 1961-04-29 | 1961-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-10-28 | 1965-04-29 | 1965-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-10-28 | 1969-04-29 | 1969-10-29 | $7700.00 | Window Closed / Lapsed |