US2589904A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Roentgenographic apparatus
Assignee: Individual
•
Filing: 1946-07-19
•
Granted: 1952-03-18
•
Expires: 1966-07-19
Abstract
No abstract record available.
Inventors
- 👤 Vladeff Theodore
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:07
CPC Classifications
A; A61; A61B; A61B6/00; A61B6/50; A61B6/505
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1739440A
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US995006A
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US1458598A
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US1747434A
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US1746537A
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US1857503A
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US1948013A
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US2293324A
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US2385723A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-03-18 | 1955-09-17 | 1956-03-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-03-18 | 1959-09-17 | 1960-03-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-03-18 | 1963-09-17 | 1964-03-18 | $7700.00 | Window Closed / Lapsed |