Patent US3018302A successfully refreshed from Google Patents.
US3018302A
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US
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Novel cyclic phosphoric acid ester amides, and the production thereof
Assignee: Asta Medica GmbH
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Filing: 1958-04-15
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Granted: 1962-01-23
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Expires: 1978-04-15
Abstract
No abstract record available.
Inventors
- 👤 Arnold Herbert
- 👤 Brock Norbert
- 👤 Bourseaux Friedrich
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:10
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/547; C07F9/6564; C07F9/6581; C07F9/6584; C07F9/65842; C07F9/6571; C07F9/657154
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
7 words
NOVEL PRODUCTS OF THE FOLLOWING GENERAL FORMULA
Claim 2
Dependent Claim
7 words
NOVEL PRODUCTS OF THE FOLLOWING GENERAL FORMULA
Claim 3
Dependent Claim
23 words
A PROCESS FOR THE PRODUCTION OF NOVEL CYCLIC COMPOUNDS CONTAINING A PHOSPHORUS ATOM IN THE RING, WHEREIN A COMPOUND OF THE GENERAL FORMULA
Claim 4
Dependent Claim
23 words
A PROCESS FOR THE PRODUCTION OF NOVEL CYCLIC COMPOUNDS CONTAINING A PHOSPHORUS ATOM IN THE RING, WHEREIN A COMPOUND OF THE GENERAL 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) | 1965-01-22 | 1965-07-24 | 1966-01-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-22 | 1969-07-24 | 1970-01-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-22 | 1973-07-24 | 1974-01-23 | $7700.00 | Window Closed / Lapsed |