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US2558663A
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Irrigating sprinkler
Assignee: EMMA J OLSCHEWSKI
•
Filing: 1946-04-27
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Granted: 1951-06-26
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Expires: 1966-04-27
Abstract
No abstract record available.
Inventors
- 👤 Olschewski Hertha
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:53
CPC Classifications
B; B05; B05B; B05B3/00; B05B3/02; B05B3/04; B05B3/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1390310A
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US1401911A
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US1780332A
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US1823635A
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US2032369A
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FR734294A
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US2202349A
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US2254751A
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US2323701A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-06-25 | 1954-12-25 | 1955-06-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-06-25 | 1958-12-25 | 1959-06-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-06-25 | 1962-12-25 | 1963-06-26 | $7700.00 | Window Closed / Lapsed |