US3017422A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Composition of matter
Assignee: Universal Oil Products Co
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Filing: 1958-01-08
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Granted: 1962-01-16
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Expires: 1978-01-08
Abstract
No abstract record available.
Inventors
- 👤 Ralph B Thompson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 18:02
CPC Classifications
C; C10; C10M; C10M137/00; C10M137/02; C10M137/04; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/08; C07F9/09; C07F9/094; C07F9/16; C07F9/165; C07F9/1653; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/26; C10L1/2633; C10M137/10; C10M137/105; C10L1/2641; C10L1/265; C10M2205/00; C10M2205/02; C10M2205/022; C10M2205/024; C10M2205/026; C10M2205/14; C10M2207/00; C10M2207/28; C10M2207/282; C10M2207/34; C10M2209/00; C10M2209/10; C10M2209/103; C10M2209/104; C10M2209/105; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/042; C10M2223/047; C10N; C10N2030/00; C10N2030/12; C10N2040/00; C10N2040/135; C10N2040/14; C10N2040/16; C10N2040/17; C10N2040/20; C10N2040/22; C10N2040/24; C10N2040/241; C10N2040/242; C10N2040/243; C10N2040/244; C10N2040/245; C10N2040/246; C10N2040/247
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
29 words
THE METHOD OF PREPARING A QUINONE METHIDE PHOSPHATE WHICH COMPRISES REACTING A QUINONE METHIDE WITH A PHOSPHORIC ACID AT A TEMPERATURE OF FROM ABOUT -20* TO ABOUT 150* C.
Claim 2
Dependent Claim
7 words
A COMPOUND HAVING THE FOLLOWING GENERAL STRUCTURE:
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) | 1965-01-15 | 1965-07-17 | 1966-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-15 | 1969-07-17 | 1970-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-15 | 1973-07-17 | 1974-01-16 | $7700.00 | Window Closed / Lapsed |