Patent US2866595A successfully refreshed from Google Patents.
US2866595A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ultra-high frequency band separating filters
Assignee: Individual
•
Filing: 1957-02-26
•
Granted: 1958-12-30
•
Expires: 1977-02-26
Abstract
No abstract record available.
Inventors
- 👤 Marie Georges Robert Pierre
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:41
CPC Classifications
H; H01; H01P; H01P1/00; H01P1/20; H01P1/213
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US2129712A
Cited
US2562281A
Cited
US2558385A
Cited
US2651759A
Cited
US2626990A
Cited
US2585173A
Cited
US2748350A
Cited
US2783439A
Cited
US2730677A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-29 | 1962-06-30 | 1962-12-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-29 | 1966-06-30 | 1966-12-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-29 | 1970-06-30 | 1970-12-30 | $7700.00 | Window Closed / Lapsed |