US2953155A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Storage of styrene
Assignee: Shell USA Inc
•
Filing: 1958-05-02
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Granted: 1960-09-20
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Expires: 1978-05-02
Abstract
No abstract record available.
Inventors
- 👤 Benjamin H Cummings
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 02:32
CPC Classifications
B; B65; B65D; B65D90/00; B65D90/22; B65D90/38; C; C07; C07C; C07C15/00; C07C15/40; C07C15/42; C07C15/44; C07C15/46; Y; Y10; Y10T; Y10T137/00; Y10T137/4673; Y10T137/469; Y10T137/4841; Y10T137/8593; Y10T137/86187; Y10T137/8622
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-09-20 | 1964-03-21 | 1964-09-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-09-20 | 1968-03-21 | 1968-09-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-09-20 | 1972-03-21 | 1972-09-20 | $7700.00 | Window Closed / Lapsed |