US2563004A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Organosilicon materials containing the repeating structure-sisic-
Assignee: Dow Silicones Corp
•
Filing: 1949-06-15
•
Granted: 1951-08-07
•
Expires: 1969-06-15
Abstract
No abstract record available.
Inventors
- 👤 Harold A Clark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 20:33
CPC Classifications
C; C08; C08G; C08G77/00; C08G77/60
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
COMPOSITIONS OF THE GENERAL FORMULA
Claim 2
Dependent Claim
5 words
COMPOSITIONS OF THE GENERAL FORMULA
References Cited (Backward Citations)
US2483972A
Cited
US2491833A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1954-08-06 | 1955-02-05 | 1955-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-08-06 | 1959-02-05 | 1959-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-08-06 | 1963-02-05 | 1963-08-07 | $7700.00 | Window Closed / Lapsed |