US2296427A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process of producing aqueous dispersions of polyisobutylene
Assignee: Jasco Inc
•
Filing: 1939-06-14
•
Granted: 1942-09-22
•
Expires: 1959-06-14
Abstract
No abstract record available.
Inventors
- 👤 Daniel Walter
- 👤 Otto Michael
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 22:58
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/02; C08J3/03; C08J3/07; Y; Y10; Y10S; Y10S260/00; Y10S260/25
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) | 1945-09-21 | 1946-03-23 | 1946-09-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-09-21 | 1950-03-23 | 1950-09-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-09-21 | 1954-03-23 | 1954-09-22 | $7700.00 | Window Closed / Lapsed |