Patent US3392914A successfully refreshed from Google Patents.
US3392914A
Expired / Lapsed
US
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Control circuit arrangement for controlling temperature variations of a fluid and a comparison circuit arrangement for use in conjunction with the control circuit arrangement
Assignee: Individual
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Filing: 1965-07-16
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Granted: 1968-07-16
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Expires: 1985-07-16
Abstract
No abstract record available.
Inventors
- 👤 Nienstaedt Robert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:56
CPC Classifications
G; G05; G05B; G05B19/00; G05B19/02; G05B19/04; G05B19/07; G05B19/075; D; D06; D06F; D06F34/00; D06F34/08; G05D; G05D23/00; G05D23/19; G05D23/1902; G05D23/1904; G05D23/20; G05D23/24
Claims Analysis
Total Claims: 0
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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) | 1971-07-16 | 1972-01-15 | 1972-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-07-16 | 1976-01-15 | 1976-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-07-16 | 1980-01-15 | 1980-07-16 | $7700.00 | Window Closed / Lapsed |