Patent US1768874A successfully refreshed from Google Patents.
US1768874A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Television system
Assignee: Westinghouse Electric Corp
•
Filing: 1927-06-25
•
Granted: 1930-07-01
•
Expires: 1947-06-25
Abstract
No abstract record available.
Inventors
- 👤 Jr William H Whitten
- 👤 Thaddeus R Goldsborough
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:18
CPC Classifications
H; H04; H04N; H04N7/00; H04N7/04; H04N7/045; H03; H03C; H03C3/00; H03C3/36
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1933-06-30 | 1933-12-30 | 1934-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1937-06-30 | 1937-12-30 | 1938-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1941-06-30 | 1941-12-30 | 1942-07-01 | $7700.00 | Window Closed / Lapsed |