US2831496A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Valve control apparatus
Assignee: Honeywell Inc
•
Filing: 1955-04-18
•
Granted: 1958-04-22
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Expires: 1975-04-18
Abstract
No abstract record available.
Inventors
- 👤 Merlin R Jensen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:43
CPC Classifications
F; F16; F16K; F16K31/00; F16K31/02; F16K31/06; F16K31/10; F16K3/00; F16K3/22; F16K3/24; F16K3/26; Y; Y10; Y10T; Y10T137/00; Y10T137/6198; Y10T137/6253
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1877530A
Cited
US2394343A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-21 | 1961-10-21 | 1962-04-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-21 | 1965-10-21 | 1966-04-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-21 | 1969-10-21 | 1970-04-22 | $7700.00 | Window Closed / Lapsed |