Patent US3037056A successfully refreshed from Google Patents.
US3037056A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Amido polyglycols
Assignee: California Research LLC
•
Filing: 1959-03-30
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Granted: 1962-05-29
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Expires: 1979-03-30
Abstract
No abstract record available.
Inventors
- 👤 Lowe Warren
- 👤 Frank W Kavanagh
- 👤 Frank A Stuart
- 👤 William T Stewart
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:39
CPC Classifications
C; C08; C08G; C08G65/00; C08G65/34; C08G65/48
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
12 words
ETHYLENICALLY UNSATURATED ACYL AMIDO ALKYL ETHER OF POLYALKYLENE GLYCOLS HAVING THE FORMULA:
Claim 2
Dependent Claim
12 words
ETHYLENICALLY UNSATURATED ACYL AMIDO ALKYL ETHER OF POLYALKYLENE GLYCOLS HAVING THE FORMULA:
References Cited (Backward Citations)
US2146873A
Cited
US2576501A
Cited
US2677700A
Cited
US2808397A
Cited
US2792367A
Cited
US2892783A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-05-28 | 1965-11-27 | 1966-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-28 | 1969-11-27 | 1970-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-28 | 1973-11-27 | 1974-05-29 | $7700.00 | Window Closed / Lapsed |