US2749704A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric clock time indicating device
Assignee: Individual
•
Filing: 1953-10-30
•
Granted: 1956-06-12
•
Expires: 1973-10-30
Abstract
No abstract record available.
Inventors
- 👤 Heikkila Pentti
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:28
CPC Classifications
G; G04; G04B; G04B45/00; G04B45/04; G04B27/00; G04B27/004
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2248195A
Cited
US2199017A
Cited
FR845764A
Cited
US2551100A
Cited
US2574430A
Cited
FR1018684A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-06-12 | 1959-12-12 | 1960-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-06-12 | 1963-12-12 | 1964-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-06-12 | 1967-12-12 | 1968-06-12 | $7700.00 | Window Closed / Lapsed |