US2835800A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Diversity receiving system
Assignee: Individual
•
Filing: 1955-11-14
•
Granted: 1958-05-20
•
Expires: 1975-11-14
Abstract
No abstract record available.
Inventors
- 👤 James R Day
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 05:39
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)
US2428295A
Cited
GB577247A
Cited
US2384456A
Cited
US2511015A
Cited
US2488193A
Cited
US2631198A
Cited
US2689886A
Cited
US2644885A
Cited
US2740847A
Cited
US2679029A
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 |