Patent US3936615A successfully refreshed from Google Patents.
US2862001A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Process for the manufacture of an isoxazolidone compound
Assignee: F Hoffmann La Roche AG
•
Filing: 1956-07-13
•
Granted: 1958-11-25
•
Expires: 1976-07-13
Abstract
No abstract record available.
Inventors
- 👤 Kirchensteiner Hans
- 👤 Spiegelberg Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:06
CPC Classifications
C; C07; C07D; C07D261/00; C07D261/02; C07D261/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
3 words
A-HALOGENACETAMINO-B-CHLORO-PROPIONIC ACID HALIDE.
Claim 2
Dependent Claim
3 words
A-HALOGENACETAMINO-B-CHLORO-PROPIONIC ACID HALIDE.
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) | 1961-11-24 | 1962-05-26 | 1962-11-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-24 | 1966-05-26 | 1966-11-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-24 | 1970-05-26 | 1970-11-25 | $7700.00 | Window Closed / Lapsed |