Patent US3056832A successfully refreshed from Google Patents.
US3056832A
Expired / Lapsed
US
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Partial amides
Assignee: Baker Petrolite LLC
•
Filing: 1958-01-16
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Granted: 1962-10-02
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Expires: 1978-01-16
Abstract
No abstract record available.
Inventors
- 👤 Verner L Stromberg
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:03
CPC Classifications
C; C23; C23F; C23F11/00; C23F11/08; C23F11/10; C23F11/14; C23F11/145
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
6 words
A PARTIAL AMIDE OF THE FORMULA
Claim 2
Dependent Claim
6 words
A PARTIAL AMIDE OF THE FORMULA
References Cited (Backward Citations)
US2191738A
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US2301969A
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US2275006A
Cited
US2515320A
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US2598213A
Cited
US2750339A
Cited
US2821521A
Cited
US2840600A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-01 | 1966-04-02 | 1966-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-01 | 1970-04-02 | 1970-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-01 | 1974-04-02 | 1974-10-02 | $7700.00 | Window Closed / Lapsed |