US2441552A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oil reservoir
Assignee: Utica Drop Forge and Tool Corp
•
Filing: 1944-11-27
•
Granted: 1948-05-18
•
Expires: 1964-11-27
Abstract
No abstract record available.
Inventors
- 👤 William A Barnes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:34
CPC Classifications
B; B25; B25B; B25B7/00; B25B7/06; B25B7/08; F; F16; F16N; F16N7/00; F16N7/12; Y; Y10; Y10T; Y10T403/00; Y10T403/32; Y10T403/32606; Y10T403/32951; Y10T403/32959
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1930067A
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US1939444A
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US2135022A
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US2169580A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-05-18 | 1951-11-17 | 1952-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-05-18 | 1955-11-17 | 1956-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-05-18 | 1959-11-17 | 1960-05-18 | $7700.00 | Window Closed / Lapsed |