US3347890A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Triorganotin carbodhmides and isoureas and the preparation thereof
Assignee: M&T Chemicals Inc
•
Filing: 1964-10-26
•
Granted: 1967-10-17
•
Expires: 1984-10-26
Abstract
No abstract record available.
Inventors
- 👤 Alwyn G Davies
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:58
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/22; C07F7/2284
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
12 words
A NOVEL ORGANOTIN COMPOUND SELECTED FROM THE GROUP CONSISTING OF R3SN-N=C(OR'')-R" AND
Claim 2
Dependent Claim
12 words
A NOVEL ORGANOTIN COMPOUND SELECTED FROM THE GROUP CONSISTING OF R3SN-N=C(OR'')-R" AND
References Cited (Backward Citations)
US3311647A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-10-16 | 1971-04-17 | 1971-10-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-10-16 | 1975-04-17 | 1975-10-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-10-16 | 1979-04-17 | 1979-10-17 | $7700.00 | Window Closed / Lapsed |