US2932399A
Expired / Lapsed
US
⏱️ 0.0 years remaining
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Assignee: Individual
•
Filing: 1956-03-27
•
Granted: 1960-04-12
•
Expires: 1976-03-27
Abstract
No abstract record available.
Inventors
- 👤 Emele Otto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:47
CPC Classifications
B; B30; B30B; B30B9/00; B30B9/02; B30B9/04; B30B9/10; B01; B01D; B01D25/00; B01D25/12; B01D25/127; B01D25/21; B01D25/215; B01D25/28; B01D25/282; B01D25/285; B01D25/32; B01D25/322
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US297042A
Cited
US402455A
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US549896A
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US699052A
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GB123589A
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US1720211A
Cited
US2006131A
Cited
US2512365A
Cited
US2705016A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-04-12 | 1963-10-12 | 1964-04-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-04-12 | 1967-10-12 | 1968-04-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-04-12 | 1971-10-12 | 1972-04-12 | $7700.00 | Window Closed / Lapsed |