US2445735A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Alkylated phenol and process for producing same
Assignee: Bridgestone Firestone Inc
•
Filing: 1946-03-08
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Granted: 1948-07-20
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Expires: 1966-03-08
Abstract
No abstract record available.
Inventors
- 👤 Leland J Kitchen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:12
CPC Classifications
C; C07; C07C; C07C39/00; C07C39/02; C07C39/06; C07C37/00; C07C37/11; C07C37/14; C08; C08K; C08K5/00; C08K5/04; C08K5/13; Y; Y10; Y10S; Y10S524/00; Y10S524/925; Y10S524/929
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2189805A
Cited
US2265582A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-07-20 | 1952-01-19 | 1952-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-07-20 | 1956-01-19 | 1956-07-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-07-20 | 1960-01-19 | 1960-07-20 | $7700.00 | Window Closed / Lapsed |