US2652825A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Medical diagnostic instrument
Assignee: Individual
•
Filing: 1949-12-09
•
Granted: 1953-09-22
•
Expires: 1969-12-09
Abstract
No abstract record available.
Inventors
- 👤 Elmer M Rauh
- 👤 Bergerson Charles William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 02:27
CPC Classifications
A; A61; A61B; A61B8/00; A61B8/44; A61B8/4444; A61B8/4455; A61B5/00; A61B5/06; A61B8/08; A61B8/0833; A61B8/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-09-21 | 1957-03-23 | 1957-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-09-21 | 1961-03-23 | 1961-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-09-21 | 1965-03-23 | 1965-09-22 | $7700.00 | Window Closed / Lapsed |