US2582799A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Novel polysiloxane compound and method of preparing the same
Assignee: General Electric Co
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Filing: 1948-01-22
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Granted: 1952-01-15
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Expires: 1968-01-22
Abstract
No abstract record available.
Inventors
- 👤 Robert O Sauer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 06:22
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/0834; C07F7/0838
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
31 words
THE METHOD OF PREPARING 2,2,4,4,6,6,8,8-OCTAMETHYL-1,5-DIOXA-2,4,6,8 - TETRASILOCANE WHICH COMPRISES (1) HYDROLYZING WITH AN AMOUNT OF WATER IN EXCESS OF THAT REQUIRED FOR COMPLETE HYDROLYSIS A COMPOUND CORRESPONDING TO THE GENERAL FORMULA
Claim 2
Independent Claim
31 words
THE METHOD OF PREPARING 2,2,4,4,6,6,8,8-OCTAMETHYL-1,5-DIOXA-2,4,6,8 - TETRASILOCANE WHICH COMPRISES (1) HYDROLYZING WITH AN AMOUNT OF WATER IN EXCESS OF THAT REQUIRED FOR COMPLETE HYDROLYSIS A COMPOUND CORRESPONDING TO THE GENERAL 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) | 1955-01-14 | 1955-07-16 | 1956-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-01-14 | 1959-07-16 | 1960-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-01-14 | 1963-07-16 | 1964-01-15 | $7700.00 | Window Closed / Lapsed |