Patent US2791182A successfully refreshed from Google Patents.
US2791182A
Expired / Lapsed
US
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Water aerating pump
Assignee: Individual
•
Filing: 1954-08-11
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Granted: 1957-05-07
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Expires: 1974-08-11
Abstract
No abstract record available.
Inventors
- 👤 Scheidl Julius
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 06:53
CPC Classifications
A; A01; A01K; A01K63/00; A01K63/04; A01K63/042
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US561126A
Cited
US1460982A
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US1969881A
Cited
US2175470A
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US2594793A
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GB657148A
Cited
US2703922A
Cited
GB662105A
Cited
US2684034A
Cited
US2690131A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-05-06 | 1960-11-05 | 1961-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-05-06 | 1964-11-05 | 1965-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-05-06 | 1968-11-05 | 1969-05-07 | $7700.00 | Window Closed / Lapsed |