US3528455A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Condition responsive parameter control means
Assignee: Robertshaw Controls Co
•
Filing: 1966-11-16
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Granted: 1970-09-15
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Expires: 1986-11-16
Abstract
No abstract record available.
Inventors
- 👤 Kenneth G Kreuter
- 👤 Klaus P Mueller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 03:27
CPC Classifications
G; G05; G05D; G05D16/00; G05D16/04; G05D16/06; G05D16/063; G05D16/0644; G05D16/0672; F; F15; F15C; F15C3/00; F24; F24F; F24F11/00; F24F11/62; F24F11/70; F24F11/80; F24F11/83; F24F11/84; G05D16/14; G05D16/18; G05D16/185; F24F11/30; F24F11/72; F24F11/74; F24F2110/00; F24F2110/10; Y; Y10; Y10T; Y10T137/00; Y10T137/2278; Y10T137/8593; Y10T137/86493; Y10T137/86574; Y10T137/86622; Y10T137/86919
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2537308A
Cited
US2427441A
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GB723537A
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GB827538A
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US2935083A
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US3034761A
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FR1313793A
Cited
US3326239A
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FR1370924A
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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) | 1973-09-14 | 1974-03-16 | 1974-09-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-09-14 | 1978-03-16 | 1978-09-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-09-14 | 1982-03-16 | 1982-09-15 | $7700.00 | Window Closed / Lapsed |