Patent US2835799A successfully refreshed from Google Patents.
US2835799A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diversity receiving system
Assignee: Individual
•
Filing: 1955-06-24
•
Granted: 1958-05-20
•
Expires: 1975-06-24
Abstract
No abstract record available.
Inventors
- 👤 James R Day
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:36
CPC Classifications
H; H04; H04B; H04B7/00; H04B7/02; H04B7/04; H04B7/08; H04B7/0837; H04B7/0842; H04B7/0865
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2301649A
Cited
US2452436A
Cited
GB577247A
Cited
US2384456A
Cited
US2488193A
Cited
US2589711A
Cited
US2644885A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-19 | 1961-11-18 | 1962-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-19 | 1965-11-18 | 1966-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-19 | 1969-11-18 | 1970-05-20 | $7700.00 | Window Closed / Lapsed |