Patent US3189608A successfully refreshed from Google Patents.
US3189608A
Expired / Lapsed
US
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Tertiaryaminocyclobutanones and their production
Assignee: Eastman Kodak Co
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Filing: 1961-05-26
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Granted: 1965-06-15
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Expires: 1981-05-26
Abstract
No abstract record available.
Inventors
- 👤 James C Martin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 18:16
CPC Classifications
C; C07; C07D; C07D295/00; C07D295/04; C07D295/10; C07D295/112; C07D295/116; C07D311/00; C07D311/96; C07D333/00; C07D333/02; C07D333/04; C07D333/06; C07D333/22
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
6 words
A CYCLOBUTANE DERIVATIVE HAVING THE FORMULA:
Claim 2
Dependent Claim
6 words
A CYCLOBUTANE DERIVATIVE HAVING THE FORMULA:
Claim 3
Dependent Claim
10 words
THE PROCESS WHICH COMPRISES REACTING A COMPOUND HAVING THE FORMULA:
Claim 4
Dependent Claim
10 words
THE PROCESS WHICH COMPRISES REACTING A COMPOUND HAVING THE FORMULA:
References Cited (Backward Citations)
US3051622A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-06-14 | 1968-12-14 | 1969-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-14 | 1972-12-14 | 1973-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-14 | 1976-12-14 | 1977-06-15 | $7700.00 | Window Closed / Lapsed |