Patent US2496335A successfully refreshed from Google Patents.
US2496335A
Expired / Lapsed
US
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Dialkyl silane derivative of ricinoleic acid ester
Assignee: U S Ind Chemicals Inc
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Filing: 1948-11-27
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Granted: 1950-02-07
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Expires: 1968-11-27
Abstract
No abstract record available.
Inventors
- 👤 Christ Robert Edward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 04:22
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/54; C08K5/541; C08K5/5425; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/18; C07F7/1804
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
21 words
A COMPOSITION WHICH IS A USEFUL PLASTICIZER FOR NITROCELLULOSE, THE SAID COMPOSITION CONSISTING ESSENTIALLY OF A COMPOUND HAVING THE GENERIC FORMULA
Claim 2
Dependent Claim
21 words
A COMPOSITION WHICH IS A USEFUL PLASTICIZER FOR NITROCELLULOSE, THE SAID COMPOSITION CONSISTING ESSENTIALLY OF A COMPOUND HAVING THE GENERIC 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) | 1953-02-06 | 1953-08-08 | 1954-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-06 | 1957-08-08 | 1958-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-06 | 1961-08-08 | 1962-02-07 | $7700.00 | Window Closed / Lapsed |