US2604957A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Separator for producing dry steam
Assignee: Maxim Silencer Co
•
Filing: 1951-03-20
•
Granted: 1952-07-29
•
Expires: 1971-03-20
Abstract
No abstract record available.
Inventors
- 👤 William R Williamson
- 👤 John P Tyskewicz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 00:52
CPC Classifications
B; B01; B01D; B01D1/00; B01D1/30; B01D1/305; C; C02; C02F; C02F1/00; C02F1/02; C02F1/04; C02F1/043
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2059521A
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US2511967A
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US1553973A
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US1607744A
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US2106589A
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US2191190A
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US2385745A
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US2489903A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-07-29 | 1956-01-28 | 1956-07-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-07-29 | 1960-01-28 | 1960-07-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-07-29 | 1964-01-28 | 1964-07-29 | $7700.00 | Window Closed / Lapsed |