Patent US3074028A successfully refreshed from Google Patents.
US3074028A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Long-period relaxation oscillator
Assignee: Individual
•
Filing: 1961-06-19
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Granted: 1963-01-15
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Expires: 1981-06-19
Abstract
No abstract record available.
Inventors
- 👤 Robert A Mammano
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:55
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/35; H03K3/351
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
111 words
A TIMING DEVICE FOR PROVIDING ELECTRICAL IMPULSES COMPRISING; A FIRST TIME INTEGRATING CAPACITOR AND AN ASSOCIATED CIRCUIT FOR CHARGING SAME AT A PREDETERMINED CHARGING RATE, A FIRST NORMALLY CUT OFF SEMI-CONDUCTOR SWITCHING DEVICE OPERABLE TO PROVIDE A FIRST DISCHARGE PATH ACROSS THE TIME INTEGRATING CAPACITOR UPON THE CHARGE THEREACROSS REACHING A FIRST PREDETERMINED MAGNITUDE, AN OUTPUT LOAD IMPEDANCE ACROSS WHICH SAID ELECTRICAL IMPULSES ARE DEVELOPED DURING CAPACITOR DISCHARGE, SAID LOAD IMPEDANCE BEING SERIES CONNECTED IN SAID FIRST DISCHARGE PATH, A SECOND NORMALLY CUT OFF SEMI-CONDUCTOR PATH ACROSS SAID FIRST CAPACITOR, AND MEANS FOR DERIVING A SIGNAL FOR ACTUATING SAID SECOND SWITCHING DEVICE FROM THE OUTPUT PULSE DEVELOPED ACROSS SAID OUTPUT IMPEDANCE.
Claim 2
Dependent Claim
111 words
A TIMING DEVICE FOR PROVIDING ELECTRICAL IMPULSES COMPRISING; A FIRST TIME INTEGRATING CAPACITOR AND AN ASSOCIATED CIRCUIT FOR CHARGING SAME AT A PREDETERMINED CHARGING RATE, A FIRST NORMALLY CUT OFF SEMI-CONDUCTOR SWITCHING DEVICE OPERABLE TO PROVIDE A FIRST DISCHARGE PATH ACROSS THE TIME INTEGRATING CAPACITOR UPON THE CHARGE THEREACROSS REACHING A FIRST PREDETERMINED MAGNITUDE, AN OUTPUT LOAD IMPEDANCE ACROSS WHICH SAID ELECTRICAL IMPULSES ARE DEVELOPED DURING CAPACITOR DISCHARGE, SAID LOAD IMPEDANCE BEING SERIES CONNECTED IN SAID FIRST DISCHARGE PATH, A SECOND NORMALLY CUT OFF SEMI-CONDUCTOR PATH ACROSS SAID FIRST CAPACITOR, AND MEANS FOR DERIVING A SIGNAL FOR ACTUATING SAID SECOND SWITCHING DEVICE FROM THE OUTPUT PULSE DEVELOPED ACROSS SAID OUTPUT IMPEDANCE.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-01-14 | 1966-07-16 | 1967-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-14 | 1970-07-16 | 1971-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-14 | 1974-07-16 | 1975-01-15 | $7700.00 | Window Closed / Lapsed |