US2544038A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Recording sgaiie
Assignee: —
•
Filing: —
•
Granted: 1951-03-06
•
Expires: 1968-03-06
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:14
CPC Classifications
G; G01; G01G; G01G23/00; G01G23/18; G01G23/20; G01G23/22
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1360186A
Cited
US1954955A
Cited
US1988072A
Cited
GB472959A
Cited
US2199010A
Cited
US2116086A
Cited
US2173575A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-03-05 | 1954-09-04 | 1955-03-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-05 | 1958-09-04 | 1959-03-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-05 | 1962-09-04 | 1963-03-06 | $7700.00 | Window Closed / Lapsed |