Patent US2418964A successfully refreshed from Google Patents.
US2418964A
Expired / Lapsed
US
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Electromechanical apparatus
Assignee: Individual
•
Filing: 1945-07-09
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Granted: 1947-04-15
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Expires: 1965-07-09
Abstract
No abstract record available.
Inventors
- 👤 David L Arenberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 21:57
CPC Classifications
G; G01; G01S; G01S1/00; G01S1/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1854003A
Cited
US1939532A
Cited
US1954947A
Cited
US2210415A
Cited
US2230836A
Cited
US2392350A
Cited
US2394461A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1950-04-14 | 1950-10-14 | 1951-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1954-04-14 | 1954-10-14 | 1955-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1958-04-14 | 1958-10-14 | 1959-04-15 | $7700.00 | Window Closed / Lapsed |