Patent US2219708A successfully refreshed from Google Patents.
US2219708A
Expired / Lapsed
US
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Device for measuring lengths on an electromagnetic base
Assignee: Bauer and Schaurte GmbH and Co KG
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Filing: 1938-11-14
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Granted: 1940-10-29
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Expires: 1958-11-14
Abstract
No abstract record available.
Inventors
- 👤 Kruse Michael
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:13
CPC Classifications
G; G01; G01B; G01B7/00; G01B7/12; G01B7/13
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1943-10-29 | 1944-04-29 | 1944-10-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-10-29 | 1948-04-29 | 1948-10-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-10-29 | 1952-04-29 | 1952-10-29 | $7700.00 | Window Closed / Lapsed |