US2688337A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Delay action valve
Assignee: Honeywell Inc
•
Filing: 1950-09-20
•
Granted: 1954-09-07
•
Expires: 1970-09-20
Abstract
No abstract record available.
Inventors
- 👤 Paul F Shivers
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:44
CPC Classifications
F; F15; F15B; F15B21/00; F15B21/10; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781; Y10T137/8593; Y10T137/86919
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US2068102A
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US2200671A
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US2212833A
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US2494714A
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US2468960A
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US2489823A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-09-06 | 1958-03-08 | 1958-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-09-06 | 1962-03-08 | 1962-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-09-06 | 1966-03-08 | 1966-09-07 | $7700.00 | Window Closed / Lapsed |