US3188443A
Expired / Lapsed
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Electronic timing apparatus
Assignee: Chemetron Corp
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Filing: 1962-02-01
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Granted: 1965-06-08
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Expires: 1982-02-01
Abstract
No abstract record available.
Inventors
- 👤 Willard H Hickok
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 19:58
CPC Classifications
H; H03; H03K; H03K17/00; H03K17/28; H03K17/288
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
90 words
TIMING APPARATUS AS CLAIMED IN CLAIM 1, IN WHICH THE MEANS TO CONTROL THE DURATION OF THE DELAY TIME INTERVAL IS SENSITIVE TO CHANGES IN SOURCE VOLTAGE SUCH AS TO DIRECTLY RELATE THE DURATION OF THE DELAY TIME INTERVAL TO THE MAGNITUDE OF THE SOURCE VOLTAGE, AND THE VOLTAGE SENSITIVE MEANS INTERRUPTS ENERGIZATION AFTER A HEAT TIME INTERVAL OF A DURATION WHICH IS INVERSELY RELATED TO THE MAGNITUDE OF THE SOURCE VOLTAGE, SO THAT THE DURATION OF THE TIMING CYCLE IS A PRESELECTED CONSTANT IN SPITE OF SOURCE VOLTAGE VARIATIONS.
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) | 1968-06-07 | 1968-12-07 | 1969-06-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-07 | 1972-12-07 | 1973-06-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-07 | 1976-12-07 | 1977-06-08 | $7700.00 | Window Closed / Lapsed |