US2553271A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diversity receiver
Assignee: RCA Corp
•
Filing: 1945-12-11
•
Granted: 1951-05-15
•
Expires: 1965-12-11
Abstract
No abstract record available.
Inventors
- 👤 Harold O Peterson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:07
CPC Classifications
H; H04; H04L; H04L1/00; H04L1/02; H04L1/06
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US1534719A
Cited
US1888065A
Cited
US1922282A
Cited
US1950123A
Cited
US2210089A
Cited
US2253832A
Cited
US2249425A
Cited
US2282526A
Cited
US2253867A
Cited
US2293565A
Cited
US2333335A
Cited
US2306687A
Cited
US2364952A
Cited
US2447057A
Cited
US2375126A
Cited
US2383126A
Cited
US2414111A
Cited
US2384456A
Cited
US2484824A
Cited
US2494309A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-05-14 | 1954-11-13 | 1955-05-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-14 | 1958-11-13 | 1959-05-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-14 | 1962-11-13 | 1963-05-15 | $7700.00 | Window Closed / Lapsed |