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Patent US2517093A successfully refreshed from Google Patents.
US2517093A
Expired / Lapsed
US
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Pyridinium derivatives of phenoxyalkanol esters
Assignee: Baker Petrolite LLC
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Filing: 1945-11-26
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Granted: 1950-08-01
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Expires: 1965-11-26
Abstract
No abstract record available.
Inventors
- 👤 Groote Melvin De
- 👤 Keiser Bernhard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 08:18
CPC Classifications
C; C10; C10G; C10G33/00; C10G33/04
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
7 words
A HYDROPHILE CHEMICAL COMPOUND OF THE FORMULA:
Claim 2
Dependent Claim
7 words
A HYDROPHILE CHEMICAL COMPOUND OF THE FORMULA:
References Cited (Backward Citations)
US1917258A
Cited
US2023075A
Cited
GB452866A
Cited
US2299782A
Cited
US2233381A
Cited
US2306775A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-07-31 | 1954-01-30 | 1954-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-31 | 1958-01-30 | 1958-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-31 | 1962-01-30 | 1962-08-01 | $7700.00 | Window Closed / Lapsed |