Patent US2512038A successfully refreshed from Google Patents.
US1789098A
Expired / Lapsed
US
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Process for the determination of melting temperatures of materials and apparatus for carrying out the aforesaid process
Assignee: Eimer & Amend
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Filing: 1928-01-27
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Granted: 1931-01-13
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Expires: 1948-01-27
Abstract
No abstract record available.
Inventors
- 👤 Graaf Lea Frank De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 08:56
CPC Classifications
G; G01; G01N; G01N25/00; G01N25/02; G01N25/04
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) | 1934-01-12 | 1934-07-14 | 1935-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1938-01-12 | 1938-07-14 | 1939-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1942-01-12 | 1942-07-14 | 1943-01-13 | $7700.00 | Window Closed / Lapsed |