US2552332A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Compass
Assignee: American Machine and Metals Inc
•
Filing: 1945-01-30
•
Granted: 1951-05-08
•
Expires: 1965-01-30
Abstract
No abstract record available.
Inventors
- 👤 Ambrose E Van Le
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:30
CPC Classifications
G; G01; G01C; G01C17/00
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
FR384308A
Cited
US1424804A
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US1474394A
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US1679764A
Cited
US2018536A
Cited
AT137984B
Cited
US2127878A
Cited
US2116103A
Cited
US2087086A
Cited
FR813078A
Cited
US2316873A
Cited
US2402638A
Cited
US2446568A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-05-07 | 1954-11-06 | 1955-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-05-07 | 1958-11-06 | 1959-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-05-07 | 1962-11-06 | 1963-05-08 | $7700.00 | Window Closed / Lapsed |