Patent US2698334A successfully refreshed from Google Patents.
US2698334A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arylhalosilanes
Assignee: Ellis Foster Co
•
Filing: 1945-03-27
•
Granted: 1954-12-28
•
Expires: 1965-03-27
Abstract
No abstract record available.
Inventors
- 👤 John B Rust
- 👤 Charles A Mackenzie
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:49
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/12; Y; Y10; Y10S; Y10S162/00; Y10S162/05
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
6 words
AN ORGANO-CHLOROSILANE HAVING THE GENERAL FORMULA
Claim 2
Dependent Claim
6 words
AN ORGANO-CHLOROSILANE HAVING THE GENERAL FORMULA
References Cited (Backward Citations)
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Cited
US2476529A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-12-27 | 1958-06-28 | 1958-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-12-27 | 1962-06-28 | 1962-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-12-27 | 1966-06-28 | 1966-12-28 | $7700.00 | Window Closed / Lapsed |