US2907786A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sulfonic derivatives of dithiocarbamic acid and method of making the same
Assignee: Dehydag Deutsche Hydrierwerke GmbH
•
Filing: 1956-01-04
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Granted: 1959-10-06
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Expires: 1976-01-04
Abstract
No abstract record available.
Inventors
- 👤 Gundel Wolfgang
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:33
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/36; C08K5/41; C08K5/42; C07; C07D; C07D277/00; C07D277/02; C07D277/20; C07D277/32; C07D277/58; C25; C25D; C25D3/00; C25D3/02; C25D7/00; C25D7/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
COMPOUNDS HAVING THE STRUCTURAL FORMULA
Claim 2
Dependent Claim
5 words
COMPOUNDS HAVING THE STRUCTURAL FORMULA
References Cited (Backward Citations)
US1972961A
Cited
GB427641A
Cited
US2127375A
Cited
US2313871A
Cited
GB628397A
Cited
US2491772A
Cited
US2673839A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1962-10-05 | 1963-04-06 | 1963-10-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-10-05 | 1967-04-06 | 1967-10-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-10-05 | 1971-04-06 | 1971-10-06 | $7700.00 | Window Closed / Lapsed |