Patent FR986612A successfully refreshed from Google Patents.
US3025313A
Expired / Lapsed
US
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Amino-aldehyde condensation product
Assignee: Dearborn Chemical Co
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Filing: 1957-06-28
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Granted: 1962-03-13
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Expires: 1977-06-28
Abstract
No abstract record available.
Inventors
- 👤 Lewis O Gunderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 17:55
CPC Classifications
C; C10; C10G; C10G33/00; C10G33/04; C23; C23F; C23F11/00; C23F11/08; C23F11/10; C23F11/14; C23F11/141; C23F11/149; Y; Y10; Y10S; Y10S507/00; Y10S507/939
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
8 words
A COMPOSITION OF MATTER HAVING THE GENERAL FORMULA
Claim 2
Dependent Claim
8 words
A COMPOSITION OF MATTER HAVING THE GENERAL FORMULA
References Cited (Backward Citations)
US1952008A
Cited
US2276309A
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US2297864A
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US2755166A
Cited
US2731498A
Cited
US2784226A
Cited
US2793932A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-03-12 | 1965-09-11 | 1966-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-03-12 | 1969-09-11 | 1970-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-03-12 | 1973-09-11 | 1974-03-13 | $7700.00 | Window Closed / Lapsed |