US2482229A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fastening device for pump impellers
Assignee: Ingersoll Rand Co
•
Filing: 1945-03-02
•
Granted: 1949-09-20
•
Expires: 1965-03-02
Abstract
No abstract record available.
Inventors
- 👤 Samuel H Weaver
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:06
CPC Classifications
F; F04; F04D; F04D29/00; F04D29/18; F04D29/20; Y; Y10; Y10T; Y10T403/00; Y10T403/70; Y10T403/7016; Y10T403/7018; Y10T403/7021
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US50190A
Cited
US459909A
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US1803136A
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US1822945A
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FR662270A
Cited
GB317469A
Cited
US1779204A
Cited
US1871092A
Cited
US1938402A
Cited
US2210811A
Cited
US2378974A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-09-19 | 1953-03-21 | 1953-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-09-19 | 1957-03-21 | 1957-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-09-19 | 1961-03-21 | 1961-09-20 | $7700.00 | Window Closed / Lapsed |