Patent US3249620A successfully refreshed from Google Patents.
US3249620A
Expired / Lapsed
US
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Nu-trihalogeno methyl thio-derivatives of 5 ring members containing heterocyclic compounds
Assignee: Bayer AG
•
Filing: 1962-08-22
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Granted: 1966-05-03
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Expires: 1982-08-22
Abstract
No abstract record available.
Inventors
- 👤 Kuhle Engelbert
- 👤 Klauke Erich
- 👤 Grewe Ferdinand
- 👤 Kaspers Helmut
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:23
CPC Classifications
C; C07; C07D; C07D263/00; C07D263/52; C07D263/54; C07D263/58; C07D209/00; C07D209/02; C07D209/04; C07D209/30; C07D209/32; C07D209/38; C07D235/00; C07D235/02; C07D235/04; C07D235/24; C07D235/26; C07D249/00; C07D249/16; C07D249/18; C07D277/00; C07D277/60; C07D277/62; C07D277/68
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
A COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
5 words
A COMPOUND OF THE FORMULA
References Cited (Backward Citations)
AT209339B
Cited
US2553775A
Cited
US2657169A
Cited
US2922794A
Cited
US2863802A
Cited
US2974085A
Cited
US3036088A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-05-02 | 1969-11-01 | 1970-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-05-02 | 1973-11-01 | 1974-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-05-02 | 1977-11-01 | 1978-05-03 | $7700.00 | Window Closed / Lapsed |