Patent US2769818A successfully refreshed from Google Patents.
US2769818A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oxybis
Assignee: Monsanto Chemicals Ltd
•
Filing: 1954-12-07
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Granted: 1956-11-06
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Expires: 1974-12-07
Abstract
No abstract record available.
Inventors
- 👤 Arthur H Schlesinger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 23:56
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/16; C07D295/18; C07D295/182; C07D295/185; C07D307/00; C07D307/02; C07D307/34; C07D307/38; C07D307/52
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
6 words
AN AMIDO ETHER HAVING THE FORMULA
Claim 2
Dependent Claim
6 words
AN AMIDO ETHER HAVING THE FORMULA
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-11-06 | 1960-05-07 | 1960-11-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-11-06 | 1964-05-07 | 1964-11-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-11-06 | 1968-05-07 | 1968-11-06 | $7700.00 | Window Closed / Lapsed |