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US2928436A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Vapor sealed liquid carriers
Assignee: Union Oil Company of California
•
Filing: 1956-09-17
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Granted: 1960-03-15
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Expires: 1976-09-17
Abstract
No abstract record available.
Inventors
- 👤 Wendrow Bernard
- 👤 Raymond F Labory
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 13:50
CPC Classifications
B; B67; B67D; B67D7/00; B67D7/04; B67D7/0476; B67D7/0478
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US308913A
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US1655312A
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US1968141A
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US2012362A
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US2056828A
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US2160683A
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US2297840A
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US2439887A
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US2803379A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-03-15 | 1963-09-14 | 1964-03-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-03-15 | 1967-09-14 | 1968-03-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-03-15 | 1971-09-14 | 1972-03-15 | $7700.00 | Window Closed / Lapsed |