Patent US3091940A successfully refreshed from Google Patents.
Patent US2188354A successfully refreshed from Google Patents.
US2188354A
Expired / Lapsed
US
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Self-cleaning hydraulic spray device
Assignee: American Rolling Mill Co
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Filing: 1938-06-30
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Granted: 1940-01-30
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Expires: 1958-06-30
Abstract
No abstract record available.
Inventors
- 👤 Edwin B Hudson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:46
CPC Classifications
B; B21; B21B; B21B45/00; B21B45/04; B21B45/08; B05; B05B; B05B1/00; B05B1/30; B05B1/32; B05B1/323; B05B15/00; B05B15/50; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7837; Y10T137/7879; Y10T137/7888
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1943-01-29 | 1943-07-31 | 1944-01-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-01-29 | 1947-07-31 | 1948-01-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-01-29 | 1951-07-31 | 1952-01-30 | $7700.00 | Window Closed / Lapsed |