Patent US2996530A successfully refreshed from Google Patents.
US2996530A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phosphinyl alicyclic silicon compounds
Assignee: Union Carbide Corp
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Filing: 1958-12-23
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Granted: 1961-08-15
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Expires: 1978-12-23
Abstract
No abstract record available.
Inventors
- 👤 Fekete Frank
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:51
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
19 words
AS A NEW COMPOSITION OF MATTER AN ORGANOSILICON COMPOUND CONTAINING AT LEAST ONE SILICON-BONDED GROUP REPRESENTED BY THE FORMULA:
Claim 2
Dependent Claim
19 words
AS A NEW COMPOSITION OF MATTER AN ORGANOSILICON COMPOUND CONTAINING AT LEAST ONE SILICON-BONDED GROUP REPRESENTED BY 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) | 1964-08-14 | 1965-02-13 | 1965-08-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-08-14 | 1969-02-13 | 1969-08-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-08-14 | 1973-02-13 | 1973-08-15 | $7700.00 | Window Closed / Lapsed |