Patent US3052722A successfully refreshed from Google Patents.
US3052722A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aminophenoxyalkane derivatives
Assignee: May and Baker Ltd
•
Filing: 1959-06-15
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Granted: 1962-09-04
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Expires: 1979-06-15
Abstract
No abstract record available.
Inventors
- 👤 Ashley Julius Nicholson
- 👤 Collins Raymond Frederick
- 👤 Davis Michael
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 19:09
CPC Classifications
C; C07; C07C; C07C45/00; C07C45/56; C07C45/562
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
13 words
A MEMBER OF THE CLASS CONSISTING OF THE AMINES OF THE GENERAL FORMULA:
Claim 2
Dependent Claim
13 words
A MEMBER OF THE CLASS CONSISTING OF THE AMINES OF THE GENERAL FORMULA:
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-09-03 | 1966-03-05 | 1966-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-09-03 | 1970-03-05 | 1970-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-09-03 | 1974-03-05 | 1974-09-04 | $7700.00 | Window Closed / Lapsed |