US2461966A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oxidized polyisobutylene
Assignee: Standard Oil Development Co
•
Filing: 1944-09-16
•
Granted: 1949-02-15
•
Expires: 1964-09-16
Abstract
No abstract record available.
Inventors
- 👤 Garland H B Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:42
CPC Classifications
C; C08; C08J; C08J5/00; C08J5/18; C08F; C08F8/00; C08F8/06; Y; Y10; Y10S; Y10S8/00; Y10S8/09
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) | 1952-02-15 | 1952-08-16 | 1953-02-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-02-15 | 1956-08-16 | 1957-02-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-02-15 | 1960-08-16 | 1961-02-15 | $7700.00 | Window Closed / Lapsed |