US2664915A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Interrelated automatic and manual valve control
Assignee: Honeywell Inc
•
Filing: 1949-02-04
•
Granted: 1954-01-05
•
Expires: 1969-02-04
Abstract
No abstract record available.
Inventors
- 👤 Pemberton H Drinker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 08:49
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/12; F16K31/126; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7771; Y10T137/778; Y10T137/7781; Y10T137/7784; Y10T137/7787; Y10T137/7791; Y10T137/8158; Y10T137/8175
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1556614A
Cited
US1956010A
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US2121936A
Cited
US2474355A
Cited
US2369887A
Cited
US2410966A
Cited
US2507606A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-01-04 | 1957-07-06 | 1958-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-01-04 | 1961-07-06 | 1962-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-01-04 | 1965-07-06 | 1966-01-05 | $7700.00 | Window Closed / Lapsed |