US2965180A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Propeller fan wheel
Assignee: American Radiator and Standard Sanitary Corp
•
Filing: 1954-12-20
•
Granted: 1960-12-20
•
Expires: 1974-12-20
Abstract
No abstract record available.
Inventors
- 👤 Harry R Killam
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:49
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/26; F04D29/32; F04D29/325
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US141871A
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US435602A
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US872307A
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US1421460A
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US1518502A
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US1868528A
Cited
US1964525A
Cited
US2046817A
Cited
US2031466A
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US2385070A
Cited
US2690063A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-12-20 | 1964-06-20 | 1964-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-12-20 | 1968-06-20 | 1968-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-12-20 | 1972-06-20 | 1972-12-20 | $7700.00 | Window Closed / Lapsed |