US2472819A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Mechanical skeleton
Assignee: Individual
•
Filing: 1945-01-26
•
Granted: 1949-06-14
•
Expires: 1965-01-26
Abstract
No abstract record available.
Inventors
- 👤 Josef H Giesen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:11
CPC Classifications
G; G09; G09B; G09B23/00; G09B23/28; G09B23/30; G09B23/32
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US88432A
Cited
DE584903C
Cited
US760943A
Cited
US983547A
Cited
AT92522B
Cited
US1494872A
Cited
US2108229A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-06-13 | 1952-12-13 | 1953-06-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-06-13 | 1956-12-13 | 1957-06-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-06-13 | 1960-12-13 | 1961-06-14 | $7700.00 | Window Closed / Lapsed |