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US2441090A
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Method of making a mix of carbon black and a synthetic rubbery polymer of a conjugated diolefin
Assignee: Aerojet Rocketdyne Holdings Inc
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Filing: 1944-02-19
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Granted: 1948-05-04
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Expires: 1964-02-19
Abstract
No abstract record available.
Inventors
- 👤 Grotenhuis Theodore A Te
- 👤 Charles B Frost
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:21
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/20; C08J3/205; C08L; C08L21/00; C08J2321/00
Claims Analysis
Total Claims: 0
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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) | 1951-05-04 | 1951-11-03 | 1952-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-05-04 | 1955-11-03 | 1956-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-05-04 | 1959-11-03 | 1960-05-04 | $7700.00 | Window Closed / Lapsed |