Patent US2954550A successfully refreshed from Google Patents.
US2954550A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pulse coding arrangements for electric communication systems
Assignee: International Standard Electric Corp
•
Filing: 1958-01-10
•
Granted: 1960-09-27
•
Expires: 1978-01-10
Abstract
No abstract record available.
Inventors
- 👤 Starr Arthur Tisso
- 👤 Cattermole Kenneth William
- 👤 Price John Clifford
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:27
CPC Classifications
A; A23; A23B; A23B7/00; A23B7/10; A23B7/14; A23B7/153; A23B7/154; H; H01; H01F; H01F1/00; H01F1/01; H01F1/03; H01F1/12; H01F1/14; H03; H03K; H03K19/00; H03K19/02; H03K19/16; H04; H04B; H04B14/00; H04B14/02; H04B14/04; H04B14/044
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2734182A
Cited
US2733860A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-27 | 1964-03-28 | 1964-09-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-27 | 1968-03-28 | 1968-09-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-27 | 1972-03-28 | 1972-09-27 | $7700.00 | Window Closed / Lapsed |