US3296556A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pulse duty ratio modulator
Assignee: Lockheed Martin Corp
•
Filing: 1962-09-21
•
Granted: 1967-01-03
•
Expires: 1982-09-21
Abstract
No abstract record available.
Inventors
- 👤 Richard A Schaefer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 13:55
CPC Classifications
H; H03; H03K; H03K7/00; H03K7/08; H03K3/00; H03K3/02; H03K3/26; H03K3/28; H03K3/281; H03K3/282; H03K3/2823
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
A RELAXATION OSCILLATOR CIRCUIT COMPRISING A NEGATIVE RESISTANCE DEVICE, A CAPACITOR, A DIODE AND A CONSTANT CURRENT SOURCE HAVING TWO COMPLEMENTARY OUTPUTS, THE FIRST OF SAID COMPLEMENTARY OUTPUTS BEING CONNECTED TO ONE SIDE OF SAID CAPACITOR AND TO SAID DIODE, AND CIRCUIT MEANS CONNECTING SAID DIODE TO PROVIDE A CONSTANT VOLTAGE DROP FOR VARIABLE CURRENT FLOW THERETHROUGH, SAID SECOND COMPLEMENTARY OUTPUT BEING CONNECTED TO THE OTHER SIDE OF SAID CAPACITOR AND TO SAID NEGATIVE RESISTANCE DEVICE.
Claim 2
Dependent Claim
76 words
A RELAXATION OSCILLATOR CIRCUIT COMPRISING A NEGATIVE RESISTANCE DEVICE, A CAPACITOR, A DIODE AND A CONSTANT CURRENT SOURCE HAVING TWO COMPLEMENTARY OUTPUTS, THE FIRST OF SAID COMPLEMENTARY OUTPUTS BEING CONNECTED TO ONE SIDE OF SAID CAPACITOR AND TO SAID DIODE, AND CIRCUIT MEANS CONNECTING SAID DIODE TO PROVIDE A CONSTANT VOLTAGE DROP FOR VARIABLE CURRENT FLOW THERETHROUGH, SAID SECOND COMPLEMENTARY OUTPUT BEING CONNECTED TO THE OTHER SIDE OF SAID CAPACITOR AND TO SAID NEGATIVE RESISTANCE DEVICE.
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) | 1970-01-02 | 1970-07-04 | 1971-01-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-02 | 1974-07-04 | 1975-01-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-02 | 1978-07-04 | 1979-01-03 | $7700.00 | Window Closed / Lapsed |