US2626987A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic switching system for electrical telecommunications
Assignee: International Standard Electric Corp
•
Filing: 1947-07-03
•
Granted: 1953-01-27
•
Expires: 1967-07-03
Abstract
No abstract record available.
Inventors
- 👤 Veaux Henri Maurice
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 19:27
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/32; H04N1/36
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2142339A
Cited
US2174490A
Cited
US2307728A
Cited
US2392356A
Cited
US2393329A
Cited
US2425019A
Cited
US2351231A
Cited
US2381901A
Cited
US2481410A
Cited
US2437027A
Cited
US2406787A
Cited
US2408108A
Cited
US2462111A
Cited
US2406165A
Cited
US2381902A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-01-27 | 1956-07-28 | 1957-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-01-27 | 1960-07-28 | 1961-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-01-27 | 1964-07-28 | 1965-01-27 | $7700.00 | Window Closed / Lapsed |