Patent US3090803A successfully refreshed from Google Patents.
US3090803A
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Glutaraldehyde dicyanohydrin and acyl derivatives thereof
Assignee: Union Carbide Corp
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Filing: 1957-07-29
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Granted: 1963-05-21
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Expires: 1977-07-29
Abstract
No abstract record available.
Inventors
- 👤 Jr Harry A Stansbury
- 👤 Howard R Guest
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 08:02
CPC Classifications
C; C07; C07C; C07C255/00; C07C51/00; C07C51/08; C08; C08K; C08K5/00; C08K5/16; C08K5/315
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
2 words
GLUTARALDEHYDE DICYANHYDRIN.
Claim 2
Dependent Claim
2 words
GLUTARALDEHYDE DICYANHYDRIN.
Claim 3
Dependent Claim
5 words
CHEMICAL COMPOUNDS HAVING THE FORMULA:
Claim 4
Dependent Claim
5 words
CHEMICAL COMPOUNDS HAVING THE FORMULA:
References Cited (Backward Citations)
US2731489A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-05-20 | 1966-11-19 | 1967-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-05-20 | 1970-11-19 | 1971-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-05-20 | 1974-11-19 | 1975-05-21 | $7700.00 | Window Closed / Lapsed |