US2761879A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Halo-substituted bicyclic aldehydes
Assignee: Shell Development Co
•
Filing: 1955-03-14
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Granted: 1956-09-04
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Expires: 1975-03-14
Abstract
No abstract record available.
Inventors
- 👤 Samuel B Soloway
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 22:56
CPC Classifications
C; C07; C07C; C07C23/00; C07C23/18; C07C23/20; C07C23/27; C07C23/30; C07C47/00; C07C47/20; C07C47/24
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
13 words
AS A CHEMICAL COMPOUND, AN ALDEHYDE HAVING THE STRUCTURE REPRESENTED BY THE FORMULA
Claim 2
Dependent Claim
13 words
AS A CHEMICAL COMPOUND, AN ALDEHYDE HAVING THE STRUCTURE REPRESENTED BY THE FORMULA
References Cited (Backward Citations)
US2407508A
Cited
US2556665A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-09-04 | 1960-03-05 | 1960-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-09-04 | 1964-03-05 | 1964-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-09-04 | 1968-03-05 | 1968-09-04 | $7700.00 | Window Closed / Lapsed |