US2583797A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dial structure
Assignee: Individual
•
Filing: 1945-08-09
•
Granted: 1952-01-29
•
Expires: 1965-08-09
Abstract
No abstract record available.
Inventors
- 👤 Eugene F Rosfelder
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:47
CPC Classifications
G; G04; G04B; G04B19/00; G04B19/04; G04B19/046
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
AT46232B
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CH55401A
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US1135228A
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US1851824A
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FR734652A
Cited
CH165963A
Cited
GB409143A
Cited
US2060427A
Cited
US2248195A
Cited
US2202581A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-01-28 | 1955-07-30 | 1956-01-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-28 | 1959-07-30 | 1960-01-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-28 | 1963-07-30 | 1964-01-29 | $7700.00 | Window Closed / Lapsed |