US2419292A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System fob transmitting two
Assignee: —
•
Filing: —
•
Granted: 1947-04-22
•
Expires: 1964-04-22
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:08
CPC Classifications
H; H04; H04J; H04J3/00; H04J3/02; H04J3/06
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1928093A
Cited
US1979484A
Cited
US2193868A
Cited
US2352634A
Cited
US2298922A
Cited
US2338395A
Cited
US2380520A
Cited
US2371415A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-04-21 | 1950-10-21 | 1951-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-04-21 | 1954-10-21 | 1955-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-04-21 | 1958-10-21 | 1959-04-22 | $7700.00 | Window Closed / Lapsed |