US3048821A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electronically locking selection device
Assignee: Compagnie Industrielle des Telephones SA
•
Filing: 1958-03-21
•
Granted: 1962-08-07
•
Expires: 1978-03-21
Abstract
No abstract record available.
Inventors
- 👤 Burstow Pierre
- 👤 Monin Claude
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:21
CPC Classifications
H; H03; H03K; H03K17/00; H03K17/51; H03K17/52; H04; H04Q; H04Q3/00; H04Q3/42; H04Q3/52; H04Q3/521
Claims Analysis
Total Claims: 0
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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) | 1965-08-06 | 1966-02-05 | 1966-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-06 | 1970-02-05 | 1970-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-06 | 1974-02-05 | 1974-08-07 | $7700.00 | Window Closed / Lapsed |