US3012052A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Trialkylsiloxanes and their production
Assignee: Bayer AG
•
Filing: 1958-08-11
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Granted: 1961-12-05
•
Expires: 1978-08-11
Abstract
No abstract record available.
Inventors
- 👤 Simmler Walter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 07:37
CPC Classifications
G; G01; G01K; G01K5/00; G01K5/02; G01K5/04; G01K5/12; A; A61; A61K; A61K47/00; A61K47/06; A61K47/24; C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/0834; C07F7/0838; C07F7/0872; C07F7/0874; C08; C08G; C08G77/00; C08G77/04; C08G77/06; C08K; C08K5/00; C08K5/0008; C09; C09K; C09K5/00; C09K5/02; C09K5/08
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
11 words
A PROCESS FOR THE PRODUCTION OF TRIALKYLSILOXYMONOARYLSILOXANES OF THE GENERAL FORMULA
Claim 2
Dependent Claim
11 words
A PROCESS FOR THE PRODUCTION OF TRIALKYLSILOXYMONOARYLSILOXANES OF THE GENERAL FORMULA
Claim 3
Dependent Claim
15 words
PENTAKIS - (TRIMETHYLSILOXY) - 1,2,3 - TRIPHENYLTRISILOXANE OF BOILING POINT 220*C. AT 1 MM. HG.
Claim 4
Dependent Claim
15 words
PENTAKIS - (TRIMETHYLSILOXY) - 1,2,3 - TRIPHENYLTRISILOXANE OF BOILING POINT 220*C. AT 1 MM. HG.
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) | 1964-12-04 | 1965-06-05 | 1965-12-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-12-04 | 1969-06-05 | 1969-12-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-12-04 | 1973-06-05 | 1973-12-05 | $7700.00 | Window Closed / Lapsed |