Patent US1065182A successfully refreshed from Google Patents.
US1065182A
Expired / Lapsed
US
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Producing isoprene.
Assignee: BASF SE
•
Filing: 1911-08-25
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Granted: 1913-06-17
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Expires: 1931-08-25
Abstract
No abstract record available.
Inventors
- 👤 Hermann A F Staudinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 14:15
CPC Classifications
C; C07; C07C; C07C4/00; C07C4/08; C07C4/10; Y; Y10; Y10S; Y10S585/00; Y10S585/929; Y10S585/947
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) | 1916-06-16 | 1916-12-16 | 1917-06-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1920-06-16 | 1920-12-16 | 1921-06-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1924-06-16 | 1924-12-16 | 1925-06-17 | $7700.00 | Window Closed / Lapsed |