US2555748A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metronomic tempo indicator
Assignee: WALTER FREDERICK CONINGSBY
•
Filing: 1945-05-23
•
Granted: 1951-06-05
•
Expires: 1965-05-23
Abstract
No abstract record available.
Inventors
- 👤 Koenigsberger Friedrich Walter
- 👤 Macphail Angus
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:27
CPC Classifications
G; G04; G04F; G04F5/00; G04F5/02; G04F5/027
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US512470A
Cited
US1769256A
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US2045271A
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US2095213A
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US2184728A
Cited
US2195255A
Cited
US2240305A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-06-04 | 1954-12-04 | 1955-06-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-06-04 | 1958-12-04 | 1959-06-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-06-04 | 1962-12-04 | 1963-06-05 | $7700.00 | Window Closed / Lapsed |