Patent US3515161A successfully refreshed from Google Patents.
US3515161A
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US
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Flow control apparatus
Assignee: Honeywell Inc
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Filing: 1968-05-06
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Granted: 1970-06-02
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Expires: 1988-05-06
Abstract
No abstract record available.
Inventors
- 👤 Holger C Kent
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 12:51
CPC Classifications
F; F15; F15C; F15C1/00; F15C1/02; Y; Y10; Y10T; Y10T137/00; Y10T137/206; Y10T137/218; Y10T137/2202; Y10T137/2218
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US3148703A
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US3150686A
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US3187763A
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US3407828A
Cited
US3410291A
Cited
US3390611A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-06-01 | 1973-12-01 | 1974-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-06-01 | 1977-12-01 | 1978-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-06-01 | 1981-12-01 | 1982-06-02 | $7700.00 | Window Closed / Lapsed |