US3179252A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for flotation
Assignee: Eimco Corp
•
Filing: 1961-01-06
•
Granted: 1965-04-20
•
Expires: 1981-01-06
Abstract
No abstract record available.
Inventors
- 👤 Edward R Vrablik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 09:04
CPC Classifications
B; B03; B03D; B03D1/00; B03D1/14; B03D1/24; B03D1/1431; B03D1/1443; B03D1/1456; B03D1/1462
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1334734A
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DE697245C
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US2289112A
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US2695710A
Cited
US2624704A
Cited
US2759607A
Cited
US2713026A
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US2793185A
Cited
FR1192181A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-04-19 | 1968-10-19 | 1969-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-19 | 1972-10-19 | 1973-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-19 | 1976-10-19 | 1977-04-20 | $7700.00 | Window Closed / Lapsed |