US2507160A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diversity receiving system
Assignee: Hartford National Bank and Trust Co
•
Filing: 1947-02-11
•
Granted: 1950-05-09
•
Expires: 1967-02-11
Abstract
No abstract record available.
Inventors
- 👤 Hugenholtz Eduard Herman
- 👤 Olthuis Jan Maximiliaan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:35
CPC Classifications
H; H04; H04B; H04B7/00; H04B7/02; H04B7/04; H04B7/08; H04B7/0802; H04B7/0817
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2004107A
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US2364952A
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US2397830A
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US2414111A
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US2384456A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-05-08 | 1953-11-07 | 1954-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-08 | 1957-11-07 | 1958-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-08 | 1961-11-07 | 1962-05-09 | $7700.00 | Window Closed / Lapsed |