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Patent US2552352A successfully refreshed from Google Patents.
US2552352A
Expired / Lapsed
US
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Spray head
Assignee: Individual
•
Filing: 1947-11-14
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Granted: 1951-05-08
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Expires: 1967-11-14
Abstract
No abstract record available.
Inventors
- 👤 Reinhold J Swanson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 05:13
CPC Classifications
B; B05; B05B; B05B1/00; B05B1/14; B05B1/1421; B05B1/18
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US53175A
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US752803A
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US1633531A
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US1555393A
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US1895890A
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US2025767A
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US2103425A
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US2249274A
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US2314357A
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US2325123A
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US2354019A
Cited
US2382066A
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US2488017A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-05-07 | 1954-11-06 | 1955-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-07 | 1958-11-06 | 1959-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-07 | 1962-11-06 | 1963-05-08 | $7700.00 | Window Closed / Lapsed |