US3010967A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the preparation of furan derivatives
Assignee: BASF Schweiz AG
•
Filing: 1959-11-09
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Granted: 1961-11-28
•
Expires: 1979-11-09
Abstract
No abstract record available.
Inventors
- 👤 Siegrist Adolf Emil
- 👤 Duennenberger Max
- 👤 Maeder Erwin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 16:53
CPC Classifications
C; C07; C07D; C07D407/00; C07D407/14; C07D235/00; C07D235/02; C07D235/04; C07D235/20; G; G05; G05F; G05F1/00; G05F1/10; G05F1/46; G05F1/56; G05F1/563
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
12 words
PROCESS FOR THE MANUFACTURE OF FURAN DERIVATIVES WHICH CORRESPOND TO THE FORMULA
Claim 2
Dependent Claim
12 words
PROCESS FOR THE MANUFACTURE OF FURAN DERIVATIVES WHICH CORRESPOND TO THE FORMULA
Claim 3
Dependent Claim
12 words
PROCESS FOR THE MANUFACTURE OF FURAN DERIVATIVES WHICH CORRESPOND TO THE FORMULA
Claim 4
Dependent Claim
12 words
PROCESS FOR THE MANUFACTURE OF FURAN DERIVATIVES WHICH CORRESPOND TO THE FORMULA
References Cited (Backward Citations)
US2899440A
Cited
US2901480A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-11-27 | 1965-05-29 | 1965-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-11-27 | 1969-05-29 | 1969-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-11-27 | 1973-05-29 | 1973-11-28 | $7700.00 | Window Closed / Lapsed |