Patent US2844628A successfully refreshed from Google Patents.
US2844628A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Perchloro-methyl-mercaptan derivatives and productions
Assignee: Bayer AG
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Filing: 1956-03-27
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Granted: 1958-07-22
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Expires: 1976-03-27
Abstract
No abstract record available.
Inventors
- 👤 Kuhle Engelbert
- 👤 Wegler Richard
- 👤 Grewe Ferdinand
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 13:07
CPC Classifications
A; A01; A01N; A01N47/00; A01N47/02; A01N47/04
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
6 words
N-PERCHLORO-METHYLSULPHENE-SUBSTITUTED SULFAMIDES OF THE GENERAL FORMULA
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-21 | 1962-01-20 | 1962-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-21 | 1966-01-20 | 1966-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-21 | 1970-01-20 | 1970-07-22 | $7700.00 | Window Closed / Lapsed |