Patent US2012112A successfully refreshed from Google Patents.
Patent US2753448A successfully refreshed from Google Patents.
US2753448A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radio-wave pulse system
Assignee: Individual
•
Filing: 1949-10-06
•
Granted: 1956-07-03
•
Expires: 1969-10-06
Abstract
No abstract record available.
Inventors
- 👤 Rines Robert Harvey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 12:22
CPC Classifications
H; H04; H04B; H04B14/00; H04B14/02
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USRE21955E
Cited
USRE23288E
Cited
US1734038A
Cited
US1861462A
Cited
US1887237A
Cited
US1956397A
Cited
US2061734A
Cited
US2227108A
Cited
US2361437A
Cited
US2407308A
Cited
US2465341A
Cited
US2392546A
Cited
US2457137A
Cited
US2476337A
Cited
US2433804A
Cited
US2380959A
Cited
US2448055A
Cited
US2462852A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-07-03 | 1960-01-02 | 1960-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-07-03 | 1964-01-02 | 1964-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-07-03 | 1968-01-02 | 1968-07-03 | $7700.00 | Window Closed / Lapsed |