US3106552A
Expired / Lapsed
US
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Nu-substituted azaspiranes and azaspirane-diones and processes for their preparation
Assignee: GESCHICKTER FUND FOR MEDICAL RESEARCH
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Filing: 1960-07-19
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Granted: 1963-10-08
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Expires: 1980-07-19
Abstract
No abstract record available.
Inventors
- 👤 Charles H Grogan
- 👤 Leonard M Rice
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 16:28
CPC Classifications
C; C07; C07D; C07D221/00; C07D221/02; C07D221/20; C07D209/00; C07D209/02; C07D209/54; C07D209/56; C07D209/96
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
13 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF (1) COMPOUNDS OF THE FORMULA
Claim 2
Dependent Claim
13 words
A COMPOUND SELECTED FROM THE GROUP CONSISTING OF (1) COMPOUNDS OF THE FORMULA
References Cited (Backward Citations)
GB823338A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-10-07 | 1967-04-08 | 1967-10-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-10-07 | 1971-04-08 | 1971-10-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-10-07 | 1975-04-08 | 1975-10-08 | $7700.00 | Window Closed / Lapsed |