US1810174A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of condensation and polymerization products of acetylene
Assignee: Consortium fuer Elektrochemische Industrie GmbH
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Filing: 1925-01-16
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Granted: 1931-06-16
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Expires: 1945-01-16
Abstract
No abstract record available.
Inventors
- 👤 Willy O Herrmann
- 👤 Deutsch Hans
- 👤 Haehnel Wolfram
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 17:50
CPC Classifications
C; C08; C08G; C08G83/00; C07; C07C; C07C2/00; C08F; C08F10/00; C08F38/00; C08F38/02; C07C2531/00; C07C2531/02
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) | 1934-06-15 | 1934-12-15 | 1935-06-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1938-06-15 | 1938-12-15 | 1939-06-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1942-06-15 | 1942-12-15 | 1943-06-16 | $7700.00 | Window Closed / Lapsed |