US2532452A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Externally adjustable tubular fluid flow restrictor for refrigeration systems
Assignee: Individual
•
Filing: 1945-06-14
•
Granted: 1950-12-05
•
Expires: 1965-06-14
Abstract
No abstract record available.
Inventors
- 👤 Anthony F Hoesel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:27
CPC Classifications
F; F25; F25B; F25B41/00; F25B41/30; F25B41/37
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US96862A
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US223402A
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US1657663A
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US1711270A
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US1899251A
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US2100504A
Cited
US2225513A
Cited
US2261028A
Cited
US2301280A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-12-04 | 1954-06-05 | 1954-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-12-04 | 1958-06-05 | 1958-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-12-04 | 1962-06-05 | 1962-12-05 | $7700.00 | Window Closed / Lapsed |