US3671489A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polysiloxane copolymers derived from the carborane-silicon phthalocyanine monomer
Assignee: Singer Co
•
Filing: 1969-12-15
•
Granted: 1972-06-20
•
Expires: 1989-12-15
Abstract
Abstract Polysiloxane copolymers derived from the carborane - silicon phthalocyanine monomer. Said copolymers are useful as high temperature stable coatings, adhesives, molding compounds, for electronic components and laminating resins.
Inventors
- 👤 Robert L Barnes
- 👤 William M Block
- 👤 Daniel Grafstein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 22:00
CPC Classifications
C; C08; C08G; C08G77/00; C08G77/48; C08G77/56
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) | 1975-06-20 | 1975-12-20 | 1976-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-20 | 1979-12-20 | 1980-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-20 | 1983-12-20 | 1984-06-20 | $7700.00 | Window Closed / Lapsed |