US3287627A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wide range phase shifter
Assignee: Individual
•
Filing: 1964-03-09
•
Granted: 1966-11-22
•
Expires: 1984-03-09
Abstract
No abstract record available.
Inventors
- 👤 Barry W Poehlman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 10:41
CPC Classifications
H; H03; H03H; H03H11/00; H03H11/02; H03H11/16; H03H11/20
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
A PHASE SHIFT CIRCUIT COMPRISING A FIRST PHASE SPLITTER HAVING TWO OUTPUTS; A FIRST PHASE SHIFT NETWORK CONNECTED TO THE FIRST PHASE SPLITTER, SAID FIRST PHAST SHIFT NETWORK BEING A SERIES COMBINATION OF A CAPACITOR AND VARIABLE RESISTOR CONNECTED ACROSS BOTH OUTPUTS OF THE FIRST PHASE SPLITTER, WHEREBY THE PHASE OUTPUT OF THE PHASE SHIFT NETWORK VARIES ACCORDING TO THE RELATION
Claim 2
Dependent Claim
61 words
A PHASE SHIFT CIRCUIT COMPRISING A FIRST PHASE SPLITTER HAVING TWO OUTPUTS; A FIRST PHASE SHIFT NETWORK CONNECTED TO THE FIRST PHASE SPLITTER, SAID FIRST PHAST SHIFT NETWORK BEING A SERIES COMBINATION OF A CAPACITOR AND VARIABLE RESISTOR CONNECTED ACROSS BOTH OUTPUTS OF THE FIRST PHASE SPLITTER, WHEREBY THE PHASE OUTPUT OF THE PHASE SHIFT NETWORK VARIES ACCORDING TO THE RELATION
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-21 | 1970-05-23 | 1970-11-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-21 | 1974-05-23 | 1974-11-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-21 | 1978-05-23 | 1978-11-22 | $7700.00 | Window Closed / Lapsed |