Patent US2682548A successfully refreshed from Google Patents.
US2682548A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Delta5-androstene-3beta, 17alpha-diol-16-one ethers
Assignee: GD Searle LLC
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Filing: 1951-12-29
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Granted: 1954-06-29
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Expires: 1971-12-29
Abstract
No abstract record available.
Inventors
- 👤 Max N Huffman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 22:41
CPC Classifications
C; C07; C07J; C07J1/00; C07J75/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
6 words
$5-ANDROSTENE-3(B), 17(A) - DIOL-16-ONE-3LOWER ALKYL ETHER.
Claim 2
Dependent Claim
6 words
$5-ANDROSTENE-3(B), 17(A) - DIOL-16-ONE-3LOWER ALKYL ETHER.
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) | 1957-06-28 | 1957-12-28 | 1958-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-06-28 | 1961-12-28 | 1962-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-06-28 | 1965-12-28 | 1966-06-29 | $7700.00 | Window Closed / Lapsed |