Patent US3299104A successfully refreshed from Google Patents.
US3299104A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Certain steroid nu-bis-(haloethyl)-carbamates
Assignee: Leo AB
•
Filing: 1964-04-01
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Granted: 1967-01-17
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Expires: 1984-04-01
Abstract
No abstract record available.
Inventors
- 👤 Fex Hans Jakob
- 👤 Hogberg Knut Bertil
- 👤 Konyves Imre
- 👤 Kneip Paul Hans Otto Joseph
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:06
CPC Classifications
C; C07; C07J; C07J51/00; B; B05; B05C; B05C19/00; B05C19/02; C07J41/00; C07J41/0033; C07J41/0072
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
1 words
ESTRADIOL-3-N-BIS-(B-CHLOROETHYL)-CARBAMATE.
Claim 2
Dependent Claim
25 words
MONO- AND POLYESTERS OF ANDROGENIC STEROID HORMONES SELECTED FROM THE GROUP CONSISTING OF ANDROSTANE3A,17B-DIOL, ANDROSTANE-3A-OL-17-ONE, ANDROSTANE-3B-OL17-ONE, ANDROST-5-ENE-3B-OL-17-ONE, AND ETIOCHOLANE-3A-OL17-ONE, WITH N-BIS-(B-HALOETHYL)-CARBAMIC ACID OF THE FORMULA:
References Cited (Backward Citations)
US2885413A
Cited
US3081298A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-01-16 | 1970-07-18 | 1971-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-01-16 | 1974-07-18 | 1975-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-01-16 | 1978-07-18 | 1979-01-17 | $7700.00 | Window Closed / Lapsed |