US2481089A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process and apparatus for the synthesis of organic compounds
Assignee: M K KELLOGG Co
•
Filing: 1947-03-06
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Granted: 1949-09-06
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Expires: 1967-03-06
Abstract
No abstract record available.
Inventors
- 👤 Norman L Dickinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:32
CPC Classifications
C; C07; C07C; C07C1/00; C07C1/02; C07C1/04; C07C1/0455; C07C1/0465; C07C1/0405; C07C1/041; C07C1/0415; C07C1/046; C07C1/0485; C07C2523/00; C07C2523/70; C07C2523/74; C07C2523/745
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2194186A
Cited
US2276274A
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US2161677A
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US2231493A
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US2266161A
Cited
US2360787A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-09-05 | 1953-03-07 | 1953-09-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-09-05 | 1957-03-07 | 1957-09-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-09-05 | 1961-03-07 | 1961-09-06 | $7700.00 | Window Closed / Lapsed |