US1855205A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Differential pressure gauge for corrosive fluids
Assignee: Brown Co
•
Filing: 1926-12-11
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Granted: 1932-04-26
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Expires: 1946-12-11
Abstract
No abstract record available.
Inventors
- 👤 Milton O Schur
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 03:19
CPC Classifications
G; G01; G01L; G01L7/00; G01L7/18; Y; Y10; Y10T; Y10T137/00; Y10T137/7722; Y10T137/7758; Y10T137/7759; Y10T137/7762; Y10T137/8158; Y10T137/8326
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) | 1935-04-26 | 1935-10-26 | 1936-04-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1939-04-26 | 1939-10-26 | 1940-04-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1943-04-26 | 1943-10-26 | 1944-04-26 | $7700.00 | Window Closed / Lapsed |