US2589334A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Circuit arrangement for time subdivision
Assignee: Hartford National Bank and Trust Co
•
Filing: 1948-06-19
•
Granted: 1952-03-18
•
Expires: 1968-06-19
Abstract
No abstract record available.
Inventors
- 👤 Browne Geoffrey D Arcy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 22:43
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/04; H03K3/05; H03K3/06; H03K3/08; H03B; H03B19/00; H03B19/06; H03B19/08; H03B19/10; H04; H04J; H04J3/00; H04J3/02; H04J3/04; H04J3/042; H04N; H04N5/00; H04N5/04; H04N5/06; H04N5/067; H04N5/073
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2304813A
Cited
US2390608A
Cited
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 |