US3060182A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cationic surfactants and their preparation
Assignee: Zeneca Inc
•
Filing: 1957-04-23
•
Granted: 1962-10-23
•
Expires: 1977-04-23
Abstract
No abstract record available.
Inventors
- 👤 John D Zech
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 06:51
CPC Classifications
D; D06; D06M; D06M13/00; D06M13/322; D06M13/402; D06M13/405; C; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10L1/221; C23; C23F; C23F11/00; C23F11/08; C23F11/10; C23F11/14; C23F11/145; C23F11/149; D06M13/385; D06M7/00; C10M; C10M2201/00; C10M2201/02; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; C10M2215/08; C10M2215/082; C10M2215/22; C10M2215/221; C10M2215/223; C10M2215/224; C10M2215/225; C10M2215/226; C10M2215/24; C10M2215/26; C10M2215/28; C10M2215/30; C10M2217/00; C10M2217/04; C10M2217/046; C10M2217/06; C10M2219/00; C10M2219/04; C10M2219/044; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/043; C10N; C10N2030/00; C10N2030/12; C10N2040/00; C10N2040/46; D06M2200/00; D06M2200/40; Y; Y10; Y10S; Y10S260/00; Y10S260/15; Y10S260/19; Y10S260/20; Y10S516/00; Y10S516/01; Y10S516/07
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
20 words
A PROCESS WHICH COMPRISES REACTING AT A TEMPERATURE FROM ABOUT 75* TO 150* C. A REACTANT (1) OF THE FORMULA:
Claim 2
Dependent Claim
20 words
A PROCESS WHICH COMPRISES REACTING AT A TEMPERATURE FROM ABOUT 75* TO 150* C. A REACTANT (1) OF THE FORMULA:
Claim 3
Dependent Claim
23 words
THE PROCESS OF CLAIM 1 IN WHICH REACTANT (2) IS A CYCLIC NITROGEN COMPOUND SELECTED FROM THE GROUP CONSISTING OF IMIDAZOLINES AND TETRAHYDROPYRIMIDINES.
References Cited (Backward Citations)
US2243980A
Cited
US2163720A
Cited
US2245260A
Cited
US2347562A
Cited
US2413612A
Cited
US2525771A
Cited
US2538072A
Cited
US2581464A
Cited
US2576306A
Cited
US2585972A
Cited
US2598213A
Cited
US2687415A
Cited
US2812333A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-10-22 | 1966-04-23 | 1966-10-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-10-22 | 1970-04-23 | 1970-10-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-10-22 | 1974-04-23 | 1974-10-23 | $7700.00 | Window Closed / Lapsed |