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US3223729A
Expired / Lapsed
US
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3-allylhydantoic acid
Assignee: STWB Inc
•
Filing: 1965-01-22
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Granted: 1965-12-14
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Expires: 1985-01-22
Abstract
No abstract record available.
Inventors
- 👤 Franklyn W Gubitz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 14:19
CPC Classifications
C; C07; C07D; C07D233/00; C07D233/54; C07D233/66; C07D233/72; C07D233/76; C07D233/78; C07D233/74; C07F; C07F3/00; C07F3/10; C07F3/14
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2605285A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-13 | 1969-06-14 | 1969-12-14 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-13 | 1973-06-14 | 1973-12-14 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-13 | 1977-06-14 | 1977-12-14 | $7700.00 | Window Closed / Lapsed |