Patent US3185677A successfully refreshed from Google Patents.
US3185677A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sulfonyl azetidinone compounds
Assignee: 3M Co
•
Filing: 1960-07-08
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Granted: 1965-05-25
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Expires: 1980-07-08
Abstract
No abstract record available.
Inventors
- 👤 Horace R Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 10:29
CPC Classifications
C; C08; C08G; C08G69/00; C08G69/02; C08G69/08; C08G69/14; C08G69/24; C07; C07D; C07D205/00; C07D205/02; C07D205/06; C07D205/08; C07D205/12
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
7 words
A SULFONYL AZETIDINONE COMPOUND OF THE FORMULA:
Claim 2
Dependent Claim
7 words
A SULFONYL AZETIDINONE COMPOUND OF THE FORMULA:
References Cited (Backward Citations)
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US2409712A
Cited
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Cited
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Cited
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Cited
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Cited
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-05-24 | 1968-11-23 | 1969-05-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-05-24 | 1972-11-23 | 1973-05-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-05-24 | 1976-11-23 | 1977-05-25 | $7700.00 | Window Closed / Lapsed |