Patent US2914839A successfully refreshed from Google Patents.
US2914839A
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Process for the internal calibration of single- or multiple-part ball guide tubes
Assignee: Daimler Benz AG
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Filing: 1955-05-06
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Granted: 1959-12-01
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Expires: 1975-05-06
Abstract
No abstract record available.
Inventors
- 👤 Karl C Schwenger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:41
CPC Classifications
B; B21; B21C; B21C37/00; B21C37/06; B21C37/30; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49636; Y10T29/49643; Y10T29/49679
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
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US1466953A
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US1402508A
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US1469793A
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US1845122A
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US1883692A
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US2041199A
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US2345443A
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US2545878A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-11-30 | 1963-06-01 | 1963-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-30 | 1967-06-01 | 1967-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-30 | 1971-06-01 | 1971-12-01 | $7700.00 | Window Closed / Lapsed |