US3417121A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Substituted 1,2-silthiacyclopentanes and process for producing the same
Assignee: Evonik Operations GmbH
•
Filing: 1966-06-01
•
Granted: 1968-12-17
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Expires: 1986-06-01
Abstract
No abstract record available.
Inventors
- 👤 Koerner Gotz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 23:39
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/0898
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
4 words
1,2-SILTHIACYCLOPENTANES OF THE FORMULA
Claim 2
Dependent Claim
4 words
1,2-SILTHIACYCLOPENTANES OF THE FORMULA
Claim 3
Dependent Claim
9 words
A PROCESS OF PREPARING 1,2-SILTHIACYCLOPENTANES OF THE GENERAL FORMULA
Claim 4
Dependent Claim
9 words
A PROCESS OF PREPARING 1,2-SILTHIACYCLOPENTANES OF THE GENERAL FORMULA
References Cited (Backward Citations)
US3313837A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-12-17 | 1972-06-17 | 1972-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-12-17 | 1976-06-17 | 1976-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-12-17 | 1980-06-17 | 1980-12-17 | $7700.00 | Window Closed / Lapsed |