Patent US1715952A successfully refreshed from Google Patents.
US1715952A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Lead-in for radio apparatus
Assignee: Individual
•
Filing: 1924-10-11
•
Granted: 1929-06-04
•
Expires: 1944-10-11
Abstract
No abstract record available.
Inventors
- 👤 Joseph A Rostron
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 04:17
CPC Classifications
H; H01; H01Q; H01Q1/00; H01Q1/12; H01Q1/1271; H01Q1/1285; H01Q1/22; H01Q1/50
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) | 1932-06-03 | 1932-12-03 | 1933-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1936-06-03 | 1936-12-03 | 1937-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1940-06-03 | 1940-12-03 | 1941-06-04 | $7700.00 | Window Closed / Lapsed |