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US2594518A
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Assignee: Individual
•
Filing: 1947-06-28
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Granted: 1952-04-29
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Expires: 1967-06-28
Abstract
No abstract record available.
Inventors
- 👤 Harold A Teale
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 22:37
CPC Classifications
B; B01; B01D; B01D25/00; B01D25/12; B01D25/21; B01D25/215
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1316465A
Cited
US1049715A
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FR403915A
Cited
US996537A
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US1152772A
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GB124974A
Cited
DE332163C
Cited
US2390628A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-04-29 | 1955-10-29 | 1956-04-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-04-29 | 1959-10-29 | 1960-04-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-04-29 | 1963-10-29 | 1964-04-29 | $7700.00 | Window Closed / Lapsed |