US2399672A
Expired / Lapsed
US
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Process for the production of high molecular weight isoolefinic polymers
Assignee: Jasco Inc
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Filing: 1944-01-04
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Granted: 1946-05-07
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Expires: 1964-01-04
Abstract
No abstract record available.
Inventors
- 👤 Arthur D Green
- 👤 Stanley C Lane
- 👤 Edward T Marshall
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 20:50
CPC Classifications
C; C08; C08F; C08F210/00; C08F210/04; C08F210/08; C08F210/10; C08F210/12; C08F10/00; B; B01; B01J; B01J2208/00; B01J2208/00008; B01J2208/00017; B01J2208/00026; B01J2208/00035; B01J2208/00079; B01J2208/00088; B01J2208/00106; B01J2208/00168; B01J2208/00212; B01J2208/00477; B01J2208/00486; Y; Y10; Y10S; Y10S526/00; Y10S526/912
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1949-05-06 | 1949-11-05 | 1950-05-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1953-05-06 | 1953-11-05 | 1954-05-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1957-05-06 | 1957-11-05 | 1958-05-07 | $7700.00 | Window Closed / Lapsed |