Patent US2835669A successfully refreshed from Google Patents.
US2835669A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the production of substi-
Assignee: —
•
Filing: —
•
Granted: 1958-05-20
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Expires: 1975-05-20
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 11:43
CPC Classifications
C; C07; C07D; C07D265/00; C07D265/28; C07D265/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
15 words
A MORPHOLINE COMPOUND SELECTED FROM THE GROUP CONSISTING OF A MORPHOLINE COMPOUND OF THE FORMULA
Claim 2
Dependent Claim
15 words
A MORPHOLINE COMPOUND SELECTED FROM THE GROUP CONSISTING OF A MORPHOLINE COMPOUND OF THE FORMULA
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-05-19 | 1961-11-18 | 1962-05-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-05-19 | 1965-11-18 | 1966-05-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-05-19 | 1969-11-18 | 1970-05-20 | $7700.00 | Window Closed / Lapsed |