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US2831041A
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Dehydrogenation process
Assignee: California Research LLC
•
Filing: 1954-09-30
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Granted: 1958-04-15
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Expires: 1974-09-30
Abstract
No abstract record available.
Inventors
- 👤 Robert P Sieg
- 👤 Edward H Lynch
- 👤 Loy G Horn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 11:21
CPC Classifications
C; C07; C07C; C07C5/00; C07C5/32; C07C5/327; C07C5/333; C07C5/3332; C07C2521/00; C07C2521/02; C07C2521/04; C07C2523/00; C07C2523/16; C07C2523/24; C07C2523/26; Y; Y10; Y10S; Y10S585/00; Y10S585/909; Y10S585/91; Y10S585/911
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2474014A
Cited
US2440525A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-04-14 | 1961-10-14 | 1962-04-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-04-14 | 1965-10-14 | 1966-04-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-04-14 | 1969-10-14 | 1970-04-15 | $7700.00 | Window Closed / Lapsed |