US2794530A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Variable escapement mechanism for typewriters
Assignee: Olympia Werke AG
•
Filing: 1955-03-17
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Granted: 1957-06-04
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Expires: 1975-03-17
Abstract
No abstract record available.
Inventors
- 👤 Liebmann Reinhold
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 12:34
CPC Classifications
B; B41; B41J; B41J19/00; B41J19/18; B41J19/20; B41J19/32
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1286186A
Cited
US2439470A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-06-03 | 1960-12-03 | 1961-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-06-03 | 1964-12-03 | 1965-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-06-03 | 1968-12-03 | 1969-06-04 | $7700.00 | Window Closed / Lapsed |