US3265512A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Corrosion inhibition
Assignee: Baker Petrolite LLC
•
Filing: 1963-08-06
•
Granted: 1966-08-09
•
Expires: 1983-08-06
Abstract
No abstract record available.
Inventors
- 👤 Woodrow J Dickson
- 👤 Fred W Jenkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 18:35
CPC Classifications
C; C07; C07D; C07D207/00; C07D207/02; C07D207/30; C07D207/34; C07D207/36; C07D207/40; C07D207/404; C07D207/408; C07D207/412; B; B01; B01D; B01D19/00; B01D19/02; B01D19/04; B01D19/0404; B01D19/0413; C04; C04B; C04B24/00; C04B24/24; C04B24/28; C04B41/00; C04B41/45; C04B41/46; C04B41/48; C04B41/488; C07C; C07C209/00; C07C209/04; C07C209/06; C07C209/08; C07D233/00; C07D233/04; C07D233/06; C07D233/08; C07D233/12; C07D233/16; C07D247/00; C07D247/02; C07D307/00; C07D307/02; C07D307/34; C07D307/38; C07D307/52; C08; C08G; C08G12/00; C08G69/00; C08G69/02; C08G69/26; C08G69/34; C08G73/00; C08G73/02; C08G73/0206; C09; C09D; C09D11/00; C09D11/02; C09D11/03; C09D5/00; C09D5/08; C09D5/082; C09K; C09K8/00; C09K8/02; C09K8/03; C09K8/035; C09K8/54; C09K8/60; C09K8/62; C09K8/72; C09K8/74; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/22; C10M; C10M133/00; C10M173/00; C14; C14C; C14C9/00; C23; C23F; C23F11/00; C23F11/08; C23F11/10; C23F11/173; D; D06; D06M; D06M13/00; D06M13/322; D06M13/325; D06M13/332; E; E21; E21B; E21B41/00; E21B41/02; C10L1/221; C10L1/222; C10L1/2222; C10L1/2225; C10L1/224; C10L1/228; C10L1/2283; C10L1/232; C10L1/234; C10L1/238; C10L1/2383; C10M2201/00; C10M2201/02; C10M2215/00; C10M2215/02; C10M2215/04; C10M2215/042; C10M2215/24; C10M2215/26; C10M2217/00; C10M2217/04; C10M2217/046; C10M2217/06; C10N; C10N2030/00; C10N2030/12; C10N2040/00; C10N2040/20; C10N2040/22; C10N2050/00; C10N2050/01; Y; Y10; Y10S; Y10S516/00; Y10S516/905; Y10S516/914
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
78 words
A BRANCHED PROCESS FOR PREVENTING THE CORROSION OF FERROUS METALS IN CONTACT WITH A CORROSIVE SYSTEM CHARACTERIZED BY SUBJECTING THE EXPOSED SURFACES O SAID FERROUS METALS TO THE ACTION OF AN AMOUNT OF A COMPOUND VARYING DIRECTLY WITH THE CORROSIVENESS OF SAID CORROSIVE SYSTEM, SAID COMPOUND BEING A COMPOUND SELECTED FROM THE GROUP CONSISTING OF (1) AN ACYLATED BRANCHED POLYALKYLENEPOLYAMINE CONTAINING AT LEAST THREE PRIMARY AMINO GROUPS AND AT LEAST ONE TERTIARY AMINO GROUP AND HAVING THE FORMULA
Claim 2
Dependent Claim
78 words
A BRANCHED PROCESS FOR PREVENTING THE CORROSION OF FERROUS METALS IN CONTACT WITH A CORROSIVE SYSTEM CHARACTERIZED BY SUBJECTING THE EXPOSED SURFACES O SAID FERROUS METALS TO THE ACTION OF AN AMOUNT OF A COMPOUND VARYING DIRECTLY WITH THE CORROSIVENESS OF SAID CORROSIVE SYSTEM, SAID COMPOUND BEING A COMPOUND SELECTED FROM THE GROUP CONSISTING OF (1) AN ACYLATED BRANCHED POLYALKYLENEPOLYAMINE CONTAINING AT LEAST THREE PRIMARY AMINO GROUPS AND AT LEAST ONE TERTIARY AMINO GROUP AND HAVING THE FORMULA
References Cited (Backward Citations)
US2976179A
Cited
US3060210A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-08-08 | 1970-02-07 | 1970-08-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-08-08 | 1974-02-07 | 1974-08-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-08-08 | 1978-02-07 | 1978-08-09 | $7700.00 | Window Closed / Lapsed |