US2841011A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pressure measuring device
Assignee: Sunoco Inc
•
Filing: 1956-06-19
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Granted: 1958-07-01
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Expires: 1976-06-19
Abstract
No abstract record available.
Inventors
- 👤 Fred M Mayes
- 👤 Einar T Young
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 06:33
CPC Classifications
G; G01; G01F; G01F23/00; G01F23/14; G01F23/16; G01F23/164; G01F23/18
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) | 1961-06-30 | 1961-12-30 | 1962-07-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-06-30 | 1965-12-30 | 1966-07-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-06-30 | 1969-12-30 | 1970-07-01 | $7700.00 | Window Closed / Lapsed |