US2803637A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Organosiloxane aldehydes
Assignee: Dow Silicones Corp
•
Filing: 1954-01-18
•
Granted: 1957-08-20
•
Expires: 1974-01-18
Abstract
No abstract record available.
Inventors
- 👤 John L Speier
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:18
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/0896; C07F7/0834; C07F7/0838
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
64 words
A SILOXANE HAVING THE UNIT FORMULA (OHCR)R''SIO IN WHICH R IS SELECTED FROM THE GROUP CONSISTING OF DIVALENT SATURATED ALIPHATIC HYDROCARBON AND CYCLOALIPHATIC HYDROCARBON RADICALS, IN WHICH THE OXYGEN OF THE CARBONYL GROUP IS AT LEAST 3 CARBON ATOMS AWAY FROM THE SILICON AND R'' IS SELECTED FROM THE GROUP CONSISTING OF MONOVALENT HYDROCARBON RADICALS AND HALOGENATED MONOVALENT HYDROCARBON RADICALS FREE OF ALIPHATIC UNSATURATION.
Claim 2
Dependent Claim
64 words
A SILOXANE HAVING THE UNIT FORMULA (OHCR)R''SIO IN WHICH R IS SELECTED FROM THE GROUP CONSISTING OF DIVALENT SATURATED ALIPHATIC HYDROCARBON AND CYCLOALIPHATIC HYDROCARBON RADICALS, IN WHICH THE OXYGEN OF THE CARBONYL GROUP IS AT LEAST 3 CARBON ATOMS AWAY FROM THE SILICON AND R'' IS SELECTED FROM THE GROUP CONSISTING OF MONOVALENT HYDROCARBON RADICALS AND HALOGENATED MONOVALENT HYDROCARBON RADICALS FREE OF ALIPHATIC UNSATURATION.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-08-19 | 1961-02-18 | 1961-08-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-08-19 | 1965-02-18 | 1965-08-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-08-19 | 1969-02-18 | 1969-08-20 | $7700.00 | Window Closed / Lapsed |