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US2676978A
Expired / Lapsed
US
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Para-alkoxy-benzalacetophenone thiosemicarbazones
Assignee: Schenley Industries Inc
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Filing: 1951-12-19
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Granted: 1954-04-27
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Expires: 1971-12-19
Abstract
No abstract record available.
Inventors
- 👤 Schmidt Hans
- 👤 Behnisch Robert
- 👤 Schraufstatter Ernst
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 19:01
CPC Classifications
C; C07; C07D; C07D495/00; C07D495/02; C07D495/04; C07D471/00; C07D471/02; C07D471/04
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
7 words
NOVEL CHEMICAL COMPOUNDS REPRESENTED BY THE FORMULA:
Claim 2
Dependent Claim
7 words
NOVEL CHEMICAL COMPOUNDS REPRESENTED BY THE FORMULA:
Claim 3
Dependent Claim
7 words
NOVEL CHEMICAL COMPOUND REPRESENTED BY THE FORMULA:
Claim 4
Dependent Claim
7 words
NOVEL CHEMICAL COMPOUND REPRESENTED BY THE FORMULA:
References Cited (Backward Citations)
GB584381A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-04-26 | 1957-10-26 | 1958-04-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-04-26 | 1961-10-26 | 1962-04-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-04-26 | 1965-10-26 | 1966-04-27 | $7700.00 | Window Closed / Lapsed |