US3226381A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Poly (alpha-diazoalkanoates)
Assignee: Hercules Powder Co
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Filing: 1964-07-06
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Granted: 1965-12-28
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Expires: 1984-07-06
Abstract
No abstract record available.
Inventors
- 👤 David S Breslow
- 👤 Harold M Spurlin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 06:27
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/22; C08K5/23; C08K5/235
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
45 words
A POLY(A-DIAZOALKANOATE) ESTER OF A POLYHYDRIC ALCOHOL SELECTED FROM THE GROUP CONSISTING OF ALKALEPOLYOLS CONTAINING 3 TO 18 CARBON ATOMS AND 2 TO 4 HYDROXYL GROUPS, DIETHYLENE GLYCOL, TRIETHYLENE GLYCOL, THIODIGLYCOL, CYCLOHEXYLENE DIOS, PHENYLENE DIOS AND PHENYLENE DIMETHYLENE DIOLS, SAID A-DIAZOALKANOATE GROUP HAVING THE FORMULA
Claim 2
Dependent Claim
45 words
A POLY(A-DIAZOALKANOATE) ESTER OF A POLYHYDRIC ALCOHOL SELECTED FROM THE GROUP CONSISTING OF ALKALEPOLYOLS CONTAINING 3 TO 18 CARBON ATOMS AND 2 TO 4 HYDROXYL GROUPS, DIETHYLENE GLYCOL, TRIETHYLENE GLYCOL, THIODIGLYCOL, CYCLOHEXYLENE DIOS, PHENYLENE DIOS AND PHENYLENE DIMETHYLENE DIOLS, SAID A-DIAZOALKANOATE GROUP HAVING 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) | 1968-12-27 | 1969-06-28 | 1969-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-27 | 1973-06-28 | 1973-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-27 | 1977-06-28 | 1977-12-28 | $7700.00 | Window Closed / Lapsed |