US2943643A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flow modulating device
Assignee: General Electric Co
•
Filing: 1956-12-21
•
Granted: 1960-07-05
•
Expires: 1976-12-21
Abstract
No abstract record available.
Inventors
- 👤 Pinter George
- 👤 Anthony F Chereih
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 10:32
CPC Classifications
F; F25; F25B; F25B41/00; F25B41/30; F25B41/31; F25B41/33; F25B41/335; F16; F16K; F16K15/00; F16K15/14; F16K15/144; F25B2341/00; F25B2341/06; F25B2341/068; F25B2341/0681; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7847; Y10T137/7848; Y10T137/7849
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US978288A
Cited
US1730150A
Cited
US1956268A
Cited
US2229038A
Cited
US2128050A
Cited
US2629399A
Cited
US2618458A
Cited
US2648291A
Cited
US2856148A
Cited
US2796886A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-07-05 | 1964-01-04 | 1964-07-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-07-05 | 1968-01-04 | 1968-07-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-07-05 | 1972-01-04 | 1972-07-05 | $7700.00 | Window Closed / Lapsed |