Patent US2777853A successfully refreshed from Google Patents.
US2777853A
Expired / Lapsed
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Mercapto benzothiazole compounds
Assignee: F Hoffmann La Roche AG
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Filing: 1955-09-06
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Granted: 1957-01-15
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Expires: 1975-09-06
Abstract
No abstract record available.
Inventors
- 👤 Steiger Norbert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:18
CPC Classifications
C; C07; C07D; C07D277/00; C07D277/60; C07D277/62; C07D277/68; C07D277/70; C07D277/74
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
13 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF BASES REPRESENTED BY THE FORMULA
Claim 2
Dependent Claim
13 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF BASES REPRESENTED BY THE FORMULA
Claim 3
Dependent Claim
5 words
COMPOUNDS REPRESENTED BY THE FORMULA
Claim 4
Dependent Claim
5 words
COMPOUNDS REPRESENTED BY THE FORMULA
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-15 | 1960-07-16 | 1961-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-15 | 1964-07-16 | 1965-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-15 | 1968-07-16 | 1969-01-15 | $7700.00 | Window Closed / Lapsed |