US2443591A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radium holder
Assignee: Individual
•
Filing: 1945-06-07
•
Granted: 1948-06-22
•
Expires: 1965-06-07
Abstract
No abstract record available.
Inventors
- 👤 Banks Ephraim
- 👤 Bland Julius
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 22:35
CPC Classifications
G; G01; G01N; G01N23/00; G01N23/02; G01N23/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US161517A
Cited
US568328A
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US980742A
Cited
US1095242A
Cited
US1074272A
Cited
US1176203A
Cited
US1898866A
Cited
US1858564A
Cited
US2212635A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-06-22 | 1951-12-22 | 1952-06-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-06-22 | 1955-12-22 | 1956-06-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-06-22 | 1959-12-22 | 1960-06-22 | $7700.00 | Window Closed / Lapsed |