Patent US2894659A successfully refreshed from Google Patents.
US2894659A
Expired / Lapsed
US
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Tank unloading apparatus
Assignee: Liquid Controls Corp
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Filing: 1955-12-16
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Granted: 1959-07-14
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Expires: 1975-12-16
Abstract
No abstract record available.
Inventors
- 👤 Billeter Henry Robert
- 👤 George B Richards
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:00
CPC Classifications
B; B67; B67D; B67D7/00; B67D7/06; B67D7/32; B67D7/3245; B67D7/3263; B67D7/72
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2075126A
Cited
US2114558A
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US2186069A
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US2276838A
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US2276839A
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US2693196A
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US2794452A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-07-13 | 1963-01-12 | 1963-07-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-07-13 | 1967-01-12 | 1967-07-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-07-13 | 1971-01-12 | 1971-07-14 | $7700.00 | Window Closed / Lapsed |