Patent US4163393A successfully refreshed from Google Patents.
Patent USRE22548E successfully refreshed from Google Patents.
USRE22548E
Expired / Lapsed
US
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Preparation of aliphatic-aromatic
Assignee: —
•
Filing: 1942-05-30
•
Granted: 1944-09-26
•
Expires: 1962-05-30
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:34
CPC Classifications
C; C07; C07C; C07C303/00; C07C303/32; C07C303/02; C07C303/04; C07C303/06; C11; C11D; C11D1/00; C11D1/02; C11D1/12; C11D1/22; G; G01; G01N; G01N13/00; G01N33/00; G01N33/36; Y; Y10; Y10S; Y10S516/00; Y10S516/01; Y10S516/03
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) | 1947-09-26 | 1948-03-27 | 1948-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1951-09-26 | 1952-03-27 | 1952-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1955-09-26 | 1956-03-27 | 1956-09-26 | $7700.00 | Window Closed / Lapsed |