US2449956A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Dialkylcyclohexyl glycols and certain derivatives thereof
Assignee: Shell Development Co
•
Filing: 1945-07-09
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Granted: 1948-09-21
•
Expires: 1965-07-09
Abstract
No abstract record available.
Inventors
- 👤 Edward C Shokal
- 👤 Rupert C Morris
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 02:25
CPC Classifications
C; C09; C09D; C09D11/00; C09D11/02; C09D11/03; C08; C08K; C08K5/00; C08K5/04; C08K5/05; C08K5/053; C10; C10M; C10M171/00; C10M171/004; D; D06; D06M; D06M13/00; D06M13/10; D06M13/144; D06M13/148
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US1931846A
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US1891043A
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GB476189A
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US2179809A
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US2246032A
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US2222357A
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US2339818A
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US2373568A
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US2410007A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-09-21 | 1952-03-22 | 1952-09-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-09-21 | 1956-03-22 | 1956-09-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-09-21 | 1960-03-22 | 1960-09-21 | $7700.00 | Window Closed / Lapsed |