Patent US5669074A successfully refreshed from Google Patents.
Patent US2177200A successfully refreshed from Google Patents.
US2177200A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Internal siphon gauge
Assignee: UNITED STATES GAUGE Co
•
Filing: 1937-01-12
•
Granted: 1939-10-24
•
Expires: 1957-01-12
Abstract
No abstract record available.
Inventors
- 👤 Edwin H Bayha
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 23:44
CPC Classifications
G; G01; G01L; G01L7/00; G01L7/02; G01L7/04; G01L7/041; G01L19/00; G01L19/06; G01L19/0618; G01L19/0627; G01L19/0654
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1942-10-23 | 1943-04-24 | 1943-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-10-23 | 1947-04-24 | 1947-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-10-23 | 1951-04-24 | 1951-10-24 | $7700.00 | Window Closed / Lapsed |