US2446853A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Restrictor-suction line assembly
Assignee: FRANKLIN TRANSFORMER MANUFACTURING Co
•
Filing: 1945-08-10
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Granted: 1948-08-10
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Expires: 1965-08-10
Abstract
No abstract record available.
Inventors
- 👤 Clinton W Savidge
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:42
CPC Classifications
F; F25; F25B; F25B41/00; F25B41/30; F25B41/37; F25B2400/00; F25B2400/05; F25B2400/052; F25B2400/054
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1264442A
Cited
US2393854A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-08-10 | 1952-02-09 | 1952-08-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-08-10 | 1956-02-09 | 1956-08-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-08-10 | 1960-02-09 | 1960-08-10 | $7700.00 | Window Closed / Lapsed |