Patent US3474814A successfully refreshed from Google Patents.
US3474814A
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Control apparatus
Assignee: Honeywell Inc
•
Filing: 1968-03-18
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Granted: 1969-10-28
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Expires: 1988-03-18
Abstract
No abstract record available.
Inventors
- 👤 Neil C Sher
- 👤 John M Zabsky
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:52
CPC Classifications
F; F15; F15C; F15C1/00; F15C1/003; Y; Y10; Y10T; Y10T137/00; Y10T137/206; Y10T137/2065; Y10T137/2071; Y10T137/212; Y10T137/2125; Y10T137/2147
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3302398A
Cited
US3292648A
Cited
US3348559A
Cited
US3407828A
Cited
US3228602A
Cited
US3379204A
Cited
US3426782A
Cited
US3403509A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-10-27 | 1973-04-28 | 1973-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-10-27 | 1977-04-28 | 1977-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-10-27 | 1981-04-28 | 1981-10-28 | $7700.00 | Window Closed / Lapsed |