US2989697A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Reproducing device
Assignee: Siemens Schuckertwerke AG
•
Filing: 1956-10-09
•
Granted: 1961-06-20
•
Expires: 1976-10-09
Abstract
No abstract record available.
Inventors
- 👤 Bilz Wilhelm
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:39
CPC Classifications
G; G01; G01R; G01R13/00; G01R13/04
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1637852A
Cited
US2248504A
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US2452587A
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US2557954A
Cited
US2463534A
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US2514054A
Cited
US2573405A
Cited
US2610102A
Cited
US2660372A
Cited
US2800280A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-06-19 | 1964-12-19 | 1965-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-06-19 | 1968-12-19 | 1969-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-06-19 | 1972-12-19 | 1973-06-20 | $7700.00 | Window Closed / Lapsed |