Patent US3308157A successfully refreshed from Google Patents.
US3308157A
Expired / Lapsed
US
⏱️ 0.0 years remaining
N-(benzocyclobutene-1-loweralkyl)-carboxylic acid amides
Assignee: Colgate Palmolive Co
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Filing: 1964-08-07
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Granted: 1967-03-07
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Expires: 1984-08-07
Abstract
No abstract record available.
Inventors
- 👤 Jerry E Robertson
- 👤 Joseph A Skorcz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 07:48
CPC Classifications
C; C07; C07C; C07C309/00; C07C255/00; C07C33/00; C07C33/34; C07C45/00; C07C45/004; C07D; C07D207/00; C07D207/02; C07D207/18; C07D207/22; C07D207/24; C07D207/26; C07D207/273; C07D207/277; C07D207/28
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
1 words
N-ACETYL-1-AMINOETHYL-BENZOCYCLOBUTENE.
Claim 2
Dependent Claim
5 words
A COMPOUND OF THE 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) | 1970-03-06 | 1970-09-05 | 1971-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-03-06 | 1974-09-05 | 1975-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-03-06 | 1978-09-05 | 1979-03-07 | $7700.00 | Window Closed / Lapsed |