Patent US2916047A successfully refreshed from Google Patents.
US2916047A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic regulation of the rate of flow of a fluid through a pipe or the like
Assignee: Individual
•
Filing: 1953-12-18
•
Granted: 1959-12-08
•
Expires: 1973-12-18
Abstract
No abstract record available.
Inventors
- 👤 Kenneth L Butcher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:00
CPC Classifications
G; G05; G05D; G05D7/00; G05D7/01; G05D7/0106; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7781; Y10T137/7784; Y10T137/7787; Y10T137/7788; Y10T137/8593; Y10T137/86493; Y10T137/86718; Y10T137/86759; Y10T137/86767
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2560948A
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US1268597A
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US1699676A
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US1787686A
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US2001534A
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US2217635A
Cited
US2376383A
Cited
CH241064A
Cited
US2516333A
Cited
US2737979A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-12-07 | 1963-06-08 | 1963-12-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-12-07 | 1967-06-08 | 1967-12-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-12-07 | 1971-06-08 | 1971-12-08 | $7700.00 | Window Closed / Lapsed |