US3355477A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hexacoordinate silicon complexes
Assignee: Dow Silicones Corp
•
Filing: 1964-11-16
•
Granted: 1967-11-28
•
Expires: 1984-11-16
Abstract
No abstract record available.
Inventors
- 👤 Cecil L Frye
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:54
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/68; C07; C07F; C07F7/00; C07F7/02; C07F7/04; C07F7/06; C08G77/00; C08G77/02
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
7 words
HEXACOORDINATE SILCON COMPLEXES HAVING THE GENERAL FORMULA
Claim 2
Dependent Claim
7 words
HEXACOORDINATE SILCON COMPLEXES HAVING THE GENERAL FORMULA
Claim 3
Independent Claim
11 words
A METHOD FOR PREPARING HEXACOORDINATE SILICON COMPLEXES HAVING THE GENERAL FORMULA
Claim 4
Independent Claim
11 words
A METHOD FOR PREPARING HEXACOORDINATE SILICON COMPLEXES HAVING THE GENERAL FORMULA
References Cited (Backward Citations)
US3133108A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-11-27 | 1971-05-29 | 1971-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-27 | 1975-05-29 | 1975-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-27 | 1979-05-29 | 1979-11-28 | $7700.00 | Window Closed / Lapsed |