US3027845A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Impeller tip pocket
Assignee: Worthington Corp
•
Filing: 1959-11-16
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Granted: 1962-04-03
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Expires: 1979-11-16
Abstract
No abstract record available.
Inventors
- 👤 Frederick C Gilman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:25
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/18; F04D29/22; F04D29/24; F04D29/26; F04D29/28; F04D29/30; F04D29/66; F04D29/68; F04D29/681; F04D29/688; F05; F05D; F05D2240/00; F05D2240/20; F05D2240/30; F05D2240/304
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1071660A
Cited
US1688345A
Cited
US1806494A
Cited
US1948949A
Cited
DE691098C
Cited
GB653161A
Cited
GB636848A
Cited
US2574948A
Cited
US2737898A
Cited
US2636479A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-04-02 | 1965-10-02 | 1966-04-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-04-02 | 1969-10-02 | 1970-04-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-04-02 | 1973-10-02 | 1974-04-03 | $7700.00 | Window Closed / Lapsed |