US3227891A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Timing pulse generator
Assignee: North American Aviation Corp
•
Filing: 1959-09-30
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Granted: 1966-01-04
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Expires: 1979-09-30
Abstract
No abstract record available.
Inventors
- 👤 William D Ashcraft
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:10
CPC Classifications
H; H03; H03K; H03K3/00; H03K3/02; H03K3/26; H03K3/28; H03K3/281; H03K3/284
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
61 words
IN A MONOSTABLE MULTIVIBRATOR HAVING A PAIR OF BISTATE SWITCHING DEVICE AND MEANS INTERCONNECTING SAID DEVICES TO HAVE MUTUALLY EXCLUSIVE STATES, SAID INTERCONNECTING MEANS HAVING A RESISTANCE-CAPACITANCE TIMING CIRCUIT OF A FIRST TIME CONSTANT, SAID MULTIVIBRATOR FURTHER HAVING AN INPUT TERMINAL FOR RECEIVING A TRIGGER PULSE, THE IMPROVEMENT COMPRISING MEANS FOR PROVIDING SAID MULTIVIBRATOR WITH A SECOND TIMING CIRCUIT OF DIFFERENT
Claim 2
Dependent Claim
61 words
IN A MONOSTABLE MULTIVIBRATOR HAVING A PAIR OF BISTATE SWITCHING DEVICE AND MEANS INTERCONNECTING SAID DEVICES TO HAVE MUTUALLY EXCLUSIVE STATES, SAID INTERCONNECTING MEANS HAVING A RESISTANCE-CAPACITANCE TIMING CIRCUIT OF A FIRST TIME CONSTANT, SAID MULTIVIBRATOR FURTHER HAVING AN INPUT TERMINAL FOR RECEIVING A TRIGGER PULSE, THE IMPROVEMENT COMPRISING MEANS FOR PROVIDING SAID MULTIVIBRATOR WITH A SECOND TIMING CIRCUIT OF DIFFERENT
References Cited (Backward Citations)
US2144779A
Cited
US2955255A
Cited
US2986649A
Cited
US2837663A
Cited
US2903584A
Cited
US2945966A
Cited
US2927268A
Cited
US3033998A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-01-03 | 1969-07-05 | 1970-01-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-01-03 | 1973-07-05 | 1974-01-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-01-03 | 1977-07-05 | 1978-01-04 | $7700.00 | Window Closed / Lapsed |