US1901576A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Prevention of evaporation losses
Assignee: Standard Oil Co
•
Filing: 1927-04-25
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Granted: 1933-03-14
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Expires: 1947-04-25
Abstract
No abstract record available.
Inventors
- 👤 Harold V Atwell
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 21:11
CPC Classifications
B; B65; B65D; B65D90/00; B65D90/22; B65D90/30; Y; Y10; Y10T; Y10T137/00; Y10T137/2496; Y10T137/2559; Y10T137/2574; Y10T137/2605; Y10T137/2617; Y10T137/4456; Y10T137/4621; Y10T137/7722; Y10T137/7771; Y10T137/7779; Y10T137/7837; Y10T137/7838; Y10T137/7839
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1936-03-13 | 1936-09-12 | 1937-03-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-03-13 | 1940-09-12 | 1941-03-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-03-13 | 1944-09-12 | 1945-03-14 | $7700.00 | Window Closed / Lapsed |