US1920752A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluid pressure regulator
Assignee: General Electric Co
•
Filing: 1932-04-28
•
Granted: 1933-08-01
•
Expires: 1952-04-28
Abstract
No abstract record available.
Inventors
- 👤 Kissing Friedrich
- 👤 Maas Arnold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 07:55
CPC Classifications
G; G05; G05D; G05D16/00; G05D16/14; G05D16/18; G05D16/187; F; F04; F04D; F04D15/00; F04D15/0005; F05; F05D; F05D2270/00; F05D2270/30; F05D2270/301; F05D2270/303; F05D2270/50; F05D2270/58; F05D2270/60; F05D2270/66
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) | 1936-07-31 | 1937-01-30 | 1937-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1940-07-31 | 1941-01-30 | 1941-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1944-07-31 | 1945-01-30 | 1945-08-01 | $7700.00 | Window Closed / Lapsed |