US3049146A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Regulator for constant volume control of gas flow
Assignee: Schneider Electric Buildings Americas Inc
•
Filing: 1958-12-22
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Granted: 1962-08-14
•
Expires: 1978-12-22
Abstract
No abstract record available.
Inventors
- 👤 Harold L Hayes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:50
CPC Classifications
G; G05; G05D; G05D7/00; G05D7/01; G05D7/0106; G05D7/012; F; F24; F24F; F24F11/00; F24F11/70; F24F11/72; F24F11/74; F24F11/75; Y; Y10; Y10S; Y10S251/00; Y10S251/901; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7869; Y10T137/8593; Y10T137/86493; Y10T137/86718
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US930158A
Cited
US1529680A
Cited
DE897639C
Cited
US2822132A
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US2906287A
Cited
US2911002A
Cited
US2950733A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-08-13 | 1966-02-12 | 1966-08-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-08-13 | 1970-02-12 | 1970-08-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-08-13 | 1974-02-12 | 1974-08-14 | $7700.00 | Window Closed / Lapsed |