US2889018A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Bubble tray support means
Assignee: Standard Oil Co
•
Filing: 1954-07-22
•
Granted: 1959-06-02
•
Expires: 1974-07-22
Abstract
No abstract record available.
Inventors
- 👤 Charles J Swan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:58
CPC Classifications
B; B01; B01D; B01D3/00; B01D3/14; B01D3/32; B01D3/324; B01D3/326; B01D3/16; B01D3/18; Y; Y10; Y10T; Y10T292/00; Y10T292/20; Y10T292/205; Y10T292/212; Y10T292/214
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US934277A
Cited
US1125439A
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DE404576C
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US1733549A
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US2725252A
Cited
US2742177A
Cited
US2681820A
Cited
US2807451A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-06-01 | 1962-12-01 | 1963-06-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-06-01 | 1966-12-01 | 1967-06-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-06-01 | 1970-12-01 | 1971-06-02 | $7700.00 | Window Closed / Lapsed |