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US2875608A
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Deep drawing testing apparatus
Assignee: FORSCH BILDSAME FORMUNG DER ME
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Filing: 1955-02-16
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Granted: 1959-03-03
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Expires: 1975-02-16
Abstract
No abstract record available.
Inventors
- 👤 Werner H Engelhardt
- 👤 Horst E Gross
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 09:55
CPC Classifications
G; G01; G01N; G01N3/00; G01N3/28
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1371050A
Cited
US1653714A
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US1892013A
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US2262084A
Cited
DE849189C
Cited
FR1047130A
Cited
DE911439C
Cited
FR1062308A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-03-02 | 1962-09-01 | 1963-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-03-02 | 1966-09-01 | 1967-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-03-02 | 1970-09-01 | 1971-03-03 | $7700.00 | Window Closed / Lapsed |