US2863318A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Differential pressure producer
Assignee: Bopp & Reuther Fa GmbH
•
Filing: 1954-06-10
•
Granted: 1958-12-09
•
Expires: 1974-06-10
Abstract
No abstract record available.
Inventors
- 👤 Schroder Edgar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 14:47
CPC Classifications
G; G01; G01F; G01F1/00; G01F1/05; G01F1/34; G01F1/36; G01F1/40; G01F1/44; Y; Y10; Y10S; Y10S261/00; Y10S261/54
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2704555A
Cited
GB200994A
Cited
GB473562A
Cited
US2229819A
Cited
US2283021A
Cited
US2361993A
Cited
US2456626A
Cited
US2482528A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-12-08 | 1962-06-09 | 1962-12-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-12-08 | 1966-06-09 | 1966-12-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-12-08 | 1970-06-09 | 1970-12-09 | $7700.00 | Window Closed / Lapsed |