US2427235A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Control instrument
Assignee: Republic Flow Meters Co
•
Filing: 1944-09-11
•
Granted: 1947-09-09
•
Expires: 1964-09-11
Abstract
No abstract record available.
Inventors
- 👤 Charles H Smoot
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:56
CPC Classifications
G; G05; G05D; G05D16/00; G05D16/14; G05D16/16; G05D16/163; Y; Y10; Y10T; Y10T137/00; Y10T137/2278; Y10T137/2409; Y10T137/2452
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1897135A
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US2016824A
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US2098914A
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US2149390A
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US2117800A
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US2290987A
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US2361885A
Cited
US2272256A
Cited
US2352312A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-09-08 | 1951-03-10 | 1951-09-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-09-08 | 1955-03-10 | 1955-09-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-09-08 | 1959-03-10 | 1959-09-09 | $7700.00 | Window Closed / Lapsed |