Patent US2573593A successfully refreshed from Google Patents.
US2573593A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Servomotor
Assignee: NORDEN LAB CORP
•
Filing: 1947-01-31
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Granted: 1951-10-30
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Expires: 1967-01-31
Abstract
No abstract record available.
Inventors
- 👤 Carl L Norden
- 👤 Theodore H Barth
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:29
CPC Classifications
G; G05; G05G; G05G17/00; F; F16; F16D; F16D67/00; F16D67/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US744249A
Cited
US843076A
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US847754A
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US990999A
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US1751647A
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US2175382A
Cited
US2311321A
Cited
US2391123A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-10-29 | 1955-04-30 | 1955-10-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-10-29 | 1959-04-30 | 1959-10-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-10-29 | 1963-04-30 | 1963-10-30 | $7700.00 | Window Closed / Lapsed |