Patent US3402218A successfully refreshed from Google Patents.
US3402218A
Expired / Lapsed
US
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Blending viscous polymer solutions by forming emulsions
Assignee: Aerojet Rocketdyne Holdings Inc
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Filing: 1965-04-20
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Granted: 1968-09-17
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Expires: 1985-04-20
Abstract
No abstract record available.
Inventors
- 👤 Howard R Wilson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:28
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/12; C08J3/16; C08J2371/00; C08J2371/02
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2595797A
Cited
US2968575A
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US2953556A
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US3274129A
Cited
US3213064A
Cited
US3205207A
Cited
US3261792A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1971-09-17 | 1972-03-18 | 1972-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-09-17 | 1976-03-18 | 1976-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-09-17 | 1980-03-18 | 1980-09-17 | $7700.00 | Window Closed / Lapsed |