Patent US2754286A successfully refreshed from Google Patents.
US2754286A
Expired / Lapsed
US
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Aldehydes and their acetals
Assignee: EIDP Inc
•
Filing: 1951-10-15
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Granted: 1956-07-10
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Expires: 1971-10-15
Abstract
No abstract record available.
Inventors
- 👤 Martin Elmore Louis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 13:43
CPC Classifications
G; G03; G03C; G03C7/00; G03C7/30; G03C7/32; G03C7/34; G03C7/346
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
5 words
THE ACETALS OF THE FORMULA:
Claim 2
Dependent Claim
5 words
THE ACETALS OF THE FORMULA:
References Cited (Backward Citations)
US2310943A
Cited
US2361936A
Cited
US2281703A
Cited
US2423730A
Cited
US2397864A
Cited
US2509874A
Cited
US2518704A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-07-10 | 1960-01-09 | 1960-07-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-07-10 | 1964-01-09 | 1964-07-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-07-10 | 1968-01-09 | 1968-07-10 | $7700.00 | Window Closed / Lapsed |