US3520976A
Expired / Lapsed
US
⏱️ 0.0 years remaining
S-thiocyanomethyl compounds of 2-mercaptobenzothiazoles,2 - mercaptobenzoxazoles,and 2 - mercaptobenzimidazoles
Assignee: Buckman Laboratories Inc
•
Filing: 1968-12-24
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Granted: 1970-07-21
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Expires: 1988-12-24
Abstract
No abstract record available.
Inventors
- 👤 Stanley J Buckman
- 👤 John D Pera
- 👤 Fred W Raths
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 00:56
CPC Classifications
C; C07; C07D; C07D235/00; C07D235/02; C07D235/04; C07D235/24; C07D235/28; Y; Y10; Y10S; Y10S507/00; Y10S507/92
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3193448A
Cited
US3463785A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1973-07-20 | 1974-01-19 | 1974-07-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1977-07-20 | 1978-01-19 | 1978-07-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1981-07-20 | 1982-01-19 | 1982-07-21 | $7700.00 | Window Closed / Lapsed |