Patent US3119021A successfully refreshed from Google Patents.
US3540525A
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Pneumatic control apparatus
Assignee: Honeywell Inc
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Filing: 1968-12-23
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Granted: 1970-11-17
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Expires: 1988-12-23
Abstract
No abstract record available.
Inventors
- 👤 Arthur M Bradshaw
- 👤 Richard C Hennessey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:30
CPC Classifications
F; F24; F24F; F24F11/00; F24F11/30; F24F11/32; F24F11/70; F24F11/80; F24F11/81; F24F11/88; F25; F25B; F25B49/00; F25B49/02; F24F11/83; F24F11/84; F24F13/00; F24F13/08; F24F13/10; F24F13/14; F24F2110/00; F24F2110/10
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-11-16 | 1974-05-18 | 1974-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-11-16 | 1978-05-18 | 1978-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-11-16 | 1982-05-18 | 1982-11-17 | $7700.00 | Window Closed / Lapsed |