Patent US5159474A successfully refreshed from Google Patents.
Patent US2915544A successfully refreshed from Google Patents.
US2915544A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluoroalkylsilane diols
Assignee: Dow Silicones Corp
•
Filing: 1957-12-11
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Granted: 1959-12-01
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Expires: 1977-12-11
Abstract
No abstract record available.
Inventors
- 👤 George W Holbrook
- 👤 Paul L Brown
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 15:08
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/0834; C07F7/0838
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
7 words
A COMPOSITION OF MATTER HAVING THE FORMULA
Claim 2
Dependent Claim
7 words
A COMPOSITION OF MATTER HAVING THE FORMULA
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) | 1962-11-30 | 1963-06-01 | 1963-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-11-30 | 1967-06-01 | 1967-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-11-30 | 1971-06-01 | 1971-12-01 | $7700.00 | Window Closed / Lapsed |