Patent US3418652A successfully refreshed from Google Patents.
US3418652A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Programming device and sawtooth generator therefor
Assignee: Individual
•
Filing: 1965-09-13
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Granted: 1968-12-24
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Expires: 1985-09-13
Abstract
No abstract record available.
Inventors
- 👤 Brooks William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 20:55
CPC Classifications
H; H03; H03K; H03K4/00; H03K4/06; H03K4/08; H03K4/86; H03K3/00; H03K3/02; H03K3/42; H03K4/88
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
42 words
A SAWTOOTH OSCILLATOR COMPRISING A LARGE RESISTANCE AND A CONDENSER IN SERIES ACROSS A SOURCE OF POWER, A NEON BULB IN PARALLEL WITH SAID CONDENSER, AND A PHOTOCONDUCTOR ILLUMINATED BY SAID NEON BULB AND IN PARALLEL WITH IT AND WITH SAID CONDENSER.
References Cited (Backward Citations)
US2821657A
Cited
US3058013A
Cited
US3206650A
Cited
US3268733A
Cited
US3348104A
Cited
US3365647A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-24 | 1972-06-24 | 1972-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-24 | 1976-06-24 | 1976-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-24 | 1980-06-24 | 1980-12-24 | $7700.00 | Window Closed / Lapsed |