Patent US1746407A successfully refreshed from Google Patents.
US1746407A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Facsimile-transmitting arrangement
Assignee: Telefunken AG
•
Filing: 1928-03-31
•
Granted: 1930-02-11
•
Expires: 1948-03-31
Abstract
No abstract record available.
Inventors
- 👤 Schroter Fritz
- 👤 Schriever Otto
- 👤 Schnitzeler Peter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:29
CPC Classifications
H; H04; H04N; H04N1/00; H04N1/04; H04N1/06; H04N1/0607; H04N1/0621; H04N1/0628; H04N1/0635; H04N1/0664; H04N1/12
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) | 1933-02-10 | 1933-08-12 | 1934-02-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1937-02-10 | 1937-08-12 | 1938-02-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1941-02-10 | 1941-08-12 | 1942-02-11 | $7700.00 | Window Closed / Lapsed |