US3023582A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vortex circulation guide vanes
Assignee: American Radiator and Standard Sanitary Corp
•
Filing: 1958-05-09
•
Granted: 1962-03-06
•
Expires: 1978-05-09
Abstract
No abstract record available.
Inventors
- 👤 Thomas J Ryan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 14:03
CPC Classifications
F; F16; F16D; F16D33/00; F16D33/18; F16D33/20
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1904054A
Cited
US2074346A
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US1959703A
Cited
US2487250A
Cited
US2399852A
Cited
US2609140A
Cited
US2785636A
Cited
US2890661A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-03-05 | 1965-09-04 | 1966-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-05 | 1969-09-04 | 1970-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-05 | 1973-09-04 | 1974-03-06 | $7700.00 | Window Closed / Lapsed |