US2828334A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Oxypropylated derivatives of substituted phenol-sulfonic acid salts and method of making same
Assignee: Baker Petrolite LLC
•
Filing: 1953-06-08
•
Granted: 1958-03-25
•
Expires: 1973-06-08
Abstract
No abstract record available.
Inventors
- 👤 Groote Melvin De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 01:12
CPC Classifications
C; C07; C07C; C07C309/00; C09; C09K; C09K23/00; C09K23/12; C10; C10M; C10M1/00; C10M1/08; C10M2219/00; C10M2219/04; C10M2219/044; C10N; C10N2030/00; C10N2030/12; C10N2040/00; C10N2040/08
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
7 words
A WATER-INSOLUBLE SALT OF THE FOLLOWING COMPOSITION:
Claim 2
Dependent Claim
7 words
A WATER-INSOLUBLE SALT OF THE FOLLOWING COMPOSITION:
References Cited (Backward Citations)
US2143759A
Cited
US2135978A
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US2166136A
Cited
US2176833A
Cited
US2184935A
Cited
US2226119A
Cited
US2448664A
Cited
US2615853A
Cited
US2552528A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-03-24 | 1961-09-23 | 1962-03-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-03-24 | 1965-09-23 | 1966-03-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-03-24 | 1969-09-23 | 1970-03-25 | $7700.00 | Window Closed / Lapsed |