Patent US3657294A successfully refreshed from Google Patents.
US3657294A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for preparing organotin mercaptides
Assignee: M&T Chemicals Inc
•
Filing: 1970-03-16
•
Granted: 1972-04-18
•
Expires: 1990-03-16
Abstract
Abstract THE PRESENT INVENTION PROVIDES A NOVEL NON-TOXIC ORGANOTIN STABILIZER COMPOSITION CONTAINING ABOUT 95 PERCENT OF DI(N-OCTYL)SN S,S''-BIS(ISOCYTYLMERCAPTOACETATE). THE STABILIZER COMPOSITION ALSO CONTAINS SPECIFIED AMOUNTS OF OTHER ORGANIC TIN COMPOUNDS. THE INVENTION ALSO PROVIDES NON-TOXIC POLYVINYL CHLORIDE CONTAINING RESINS SUITABLE FOR FOOD PACKAGING USE.
Inventors
- 👤 Carl Robert Gloskey
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 12:22
CPC Classifications
C; C09; C09K; C09K15/00; C09K15/04; C09K15/32; C09K15/326; C08; C08K; C08K5/00; C08K5/56; C08K5/57; C08K5/58
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
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) | 1975-04-18 | 1975-10-18 | 1976-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-18 | 1979-10-18 | 1980-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-18 | 1983-10-18 | 1984-04-18 | $7700.00 | Window Closed / Lapsed |