Patent US3148218A successfully refreshed from Google Patents.
US3148218A
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Selective condensation of n-butyraldehyde in admixture with isobutyraldehyde
Assignee: Monsanto Co
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Filing: 1955-06-20
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Granted: 1964-09-08
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Expires: 1975-06-20
Abstract
No abstract record available.
Inventors
- 👤 Robert A Heimsch
- 👤 William E Weesner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 19:01
CPC Classifications
B; B01; B01J; B01J31/00; B01J31/02; B01J31/04; C; C07; C07C; C07C45/00; C07C45/61; C07C45/67; C07C45/68; C07C45/72; C07C45/74; B01J2231/00; B01J2231/30; B01J2231/34; B01J2231/341
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
CA478621A
Cited
US2245582A
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US2564104A
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US2517006A
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US2595763A
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US2587576A
Cited
US2820067A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1967-09-08 | 1968-03-09 | 1968-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-09-08 | 1972-03-09 | 1972-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-09-08 | 1976-03-09 | 1976-09-08 | $7700.00 | Window Closed / Lapsed |