US2858181A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of and arrangement for making micro recordings
Assignee: Robert Bosch GmbH
•
Filing: 1953-10-26
•
Granted: 1958-10-28
•
Expires: 1973-10-26
Abstract
No abstract record available.
Inventors
- 👤 Ortlieb Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 10:28
CPC Classifications
G; G01; G01D; G01D15/00; G01D15/06
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US912181A
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US676106A
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US1825551A
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US2000527A
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FR780132A
Cited
US2294149A
Cited
US2372170A
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US2664044A
Cited
US2619401A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-10-27 | 1962-04-28 | 1962-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-10-27 | 1966-04-28 | 1966-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-10-27 | 1970-04-28 | 1970-10-28 | $7700.00 | Window Closed / Lapsed |