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US1984166A
Expired / Lapsed
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Method and device for determining the properties of stratified or fibrillated materials
Assignee: Siemens and Halske AG
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Filing: 1931-01-06
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Granted: 1934-12-11
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Expires: 1951-01-06
Abstract
No abstract record available.
Inventors
- 👤 Walter Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 14:25
CPC Classifications
G; G01; G01N; G01N27/00; G01N27/02; G01N27/22; G01N27/223; G01B; G01B7/00; G01B7/02; G01B7/06; G01B7/08; G01B7/087; Y; Y10; Y10T; Y10T82/00; Y10T82/14; Y10T82/141; Y10T82/142
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) | 1937-12-10 | 1938-06-11 | 1938-12-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1941-12-10 | 1942-06-11 | 1942-12-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1945-12-10 | 1946-06-11 | 1946-12-11 | $7700.00 | Window Closed / Lapsed |