Patent US2902049A successfully refreshed from Google Patents.
US2902049A
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Device for fluid flow
Assignee: Jersey Production Research Co
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Filing: 1955-11-10
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Granted: 1959-09-01
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Expires: 1975-11-10
Abstract
No abstract record available.
Inventors
- 👤 Allen H Ilfrey
- 👤 Daniel A North
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:11
CPC Classifications
F; F04; F04B; F04B53/00; F04B53/10; F16; F16K; F16K15/00; F16K15/14; F16K15/1401; F16K15/144; F16K15/145; Y; Y10; Y10S; Y10S100/00; Y10S100/903; Y10S100/909; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7838; Y10T137/7839; Y10T137/7879; Y10T137/7888; Y10T137/7889
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB189202525A
Cited
GB382198A
Cited
US1986831A
Cited
US2124788A
Cited
DE767082C
Cited
US2606032A
Cited
FR1017649A
Cited
US2662485A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-08-31 | 1963-03-02 | 1963-09-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-08-31 | 1967-03-02 | 1967-09-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-08-31 | 1971-03-02 | 1971-09-01 | $7700.00 | Window Closed / Lapsed |