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Patent US3272855A successfully refreshed from Google Patents.
US3272855A
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Bis-alpha-cyano-beta-substituted cinnamic acid amides and esters
Assignee: GAF Chemicals Corp
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Filing: 1962-07-27
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Granted: 1966-09-13
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Expires: 1982-07-27
Abstract
No abstract record available.
Inventors
- 👤 Albert F Strobel
- 👤 Sigmund C Catino
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 13:42
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C07; C07C; C07C255/00; D; D01; D01F; D01F1/00; D01F1/02; D01F1/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
6 words
A COLORLESS COMPOUND OF THE FORMULA:
Claim 2
Dependent Claim
6 words
A COLORLESS COMPOUND OF THE FORMULA:
References Cited (Backward Citations)
CA588864A
Cited
US3069456A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-09-12 | 1970-03-14 | 1970-09-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-09-12 | 1974-03-14 | 1974-09-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-09-12 | 1978-03-14 | 1978-09-13 | $7700.00 | Window Closed / Lapsed |