Patent FR927024A successfully refreshed from Google Patents.
US2991300A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyalkyleneoxide esters of carboxyalkylpolysiloxanes
Assignee: General Electric Co
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Filing: 1959-09-16
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Granted: 1961-07-04
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Expires: 1979-09-16
Abstract
No abstract record available.
Inventors
- 👤 Gustav A Schmidt
- 👤 Jr Howard A Vaughn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:11
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C08; C08G; C08G77/00; C08G77/42; C08G77/46; C09; C09K; C09K23/00; C09K23/54; Y; Y10; Y10S; Y10S516/00; Y10S516/01
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
AN ORGANOPOLYSILOXANE HAVIG THE FORMULA
Claim 2
Dependent Claim
5 words
AN ORGANOPOLYSILOXANE HAVIG THE FORMULA
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) | 1964-07-03 | 1965-01-02 | 1965-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-07-03 | 1969-01-02 | 1969-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-07-03 | 1973-01-02 | 1973-07-04 | $7700.00 | Window Closed / Lapsed |