Patent US2502602A successfully refreshed from Google Patents.
US2502602A
Expired / Lapsed
US
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Flow restricting device
Assignee: Niles Bement Pond Co
•
Filing: 1944-07-20
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Granted: 1950-04-04
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Expires: 1964-07-20
Abstract
No abstract record available.
Inventors
- 👤 John H Stresen-Reuter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:20
CPC Classifications
F; F02; F02M; F02M69/00; F02M2700/00; F02M2700/43; F02M2700/4397
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
GB135557A
Cited
US790888A
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US1419798A
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US1850030A
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US1980672A
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US2361227A
Cited
US2361228A
Cited
US2332716A
Cited
US2349775A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-04-03 | 1953-10-03 | 1954-04-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-04-03 | 1957-10-03 | 1958-04-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-04-03 | 1961-10-03 | 1962-04-04 | $7700.00 | Window Closed / Lapsed |