US3424377A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for controlling the temperature of a medium
Assignee: Satchwell Controls Ltd
•
Filing: 1965-10-11
•
Granted: 1969-01-28
•
Expires: 1985-10-11
Abstract
No abstract record available.
Inventors
- 👤 Fritz Ludwig Felix Steghart
- 👤 Peter Leslie Kershaw
- 👤 Trevor Exelby Oliver
- 👤 Leonard George Farrant
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:32
CPC Classifications
F; F24; F24D; F24D19/00; F24D19/10; F24D19/1006; F24D19/1009; F24D19/1015; F24F; F24F1/00; F24F1/0007; F24F1/00077; F24F11/00; F24F11/70; F24F11/80; F24F11/83; F24F11/84; G; G05; G05D; G05D23/00; G05D23/19; G05D23/1906; G05D23/1913; G05D23/1919; G05D23/1921; G05D23/20; G05D23/24; G05D23/275; F24F11/30; F24F11/72; F24F11/74; F24F2110/00; F24F2110/10; F24F2221/00; F24F2221/54
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-01-28 | 1972-07-29 | 1973-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-01-28 | 1976-07-29 | 1977-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-01-28 | 1980-07-29 | 1981-01-28 | $7700.00 | Window Closed / Lapsed |