US3525737A
Expired / Lapsed
US
⏱️ 0.0 years remaining
N,n'-sulfides and method of making the same
Assignee: Rhein Chemie Rheinau GmbH
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Filing: 1967-12-05
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Granted: 1970-08-25
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Expires: 1987-12-05
Abstract
No abstract record available.
Inventors
- 👤 Rudolf Kern
- 👤 Ivan Butula
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 00:20
CPC Classifications
C; C07; C07D; C07D223/00; C07D223/02; C07D223/06; C07D223/08; C07D223/10; A; A01; A01N; A01N41/00; A01N41/12; C07D207/00; C07D207/46; C07D207/48; C07D211/00; C07D211/04; C07D211/68; C07D211/72; C07D211/74; C07D211/76; C07D227/00; C07D227/02; C07D227/06; C07D227/08; C07D227/12
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2832770A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-08-24 | 1974-02-23 | 1974-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-08-24 | 1978-02-23 | 1978-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-08-24 | 1982-02-23 | 1982-08-25 | $7700.00 | Window Closed / Lapsed |