US2843560A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cured silicon-containing products prepared from polyepoxides
Assignee: Shell Development Co
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Filing: 1954-04-30
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Granted: 1958-07-15
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Expires: 1974-04-30
Abstract
No abstract record available.
Inventors
- 👤 Thomas F Mika
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:24
CPC Classifications
C; C08; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/4007; C08G59/4085; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/18; C07F7/1804; C08G59/62
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
16 words
A SILICON-CONTAINING RESINOUS PRODUCT OBTAINED BY REACTING A POLYEPOXIDE CONTAINING AT LEAST TWO GROUPS OF CONFIGURATION
References Cited (Backward Citations)
US2687398A
Cited
US2687396A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-07-14 | 1962-01-13 | 1962-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-07-14 | 1966-01-13 | 1966-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-07-14 | 1970-01-13 | 1970-07-15 | $7700.00 | Window Closed / Lapsed |