Patent US3067210A successfully refreshed from Google Patents.
US3067210A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cumarin phosphoric esters and processes for the production thereof
Assignee: Bayer AG
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Filing: 1960-11-25
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Granted: 1962-12-04
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Expires: 1980-11-25
Abstract
No abstract record available.
Inventors
- 👤 Schrader Gerhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:37
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/30; C07F9/32; C07F9/3258; C07F9/3282
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
7 words
A PHOSPHORIC ACID ESTER OF THE FORMULA:
Claim 2
Dependent Claim
7 words
A PHOSPHORIC ACID ESTER OF 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) | 1965-12-03 | 1966-06-04 | 1966-12-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-12-03 | 1970-06-04 | 1970-12-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-12-03 | 1974-06-04 | 1974-12-04 | $7700.00 | Window Closed / Lapsed |