US2770632A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Carboxyester substituted siloxanes
Assignee: Dow Silicones Corp
•
Filing: 1954-05-20
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Granted: 1956-11-13
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Expires: 1974-05-20
Abstract
No abstract record available.
Inventors
- 👤 Robert L Merker
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:32
CPC Classifications
C; C23; C23F; C23F11/00; C23F11/08; C23F11/10; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/0834; C07F7/0838; C07F7/21; C09; C09K; C09K23/00; C09K23/54; Y; Y10; Y10S; Y10S516/00; Y10S516/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
6 words
A SILOXANE HAVING THE UNIT FORMULA
Claim 2
Dependent Claim
6 words
A SILOXANE HAVING THE UNIT FORMULA
References Cited (Backward Citations)
GB635733A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-11-13 | 1960-05-14 | 1960-11-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-13 | 1964-05-14 | 1964-11-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-13 | 1968-05-14 | 1968-11-13 | $7700.00 | Window Closed / Lapsed |