US3038849A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Insoluble trailing anode for cathodic protection of ships
Assignee: Individual
•
Filing: 1958-10-07
•
Granted: 1962-06-12
•
Expires: 1978-10-07
Abstract
No abstract record available.
Inventors
- 👤 Herman S Preiser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:36
CPC Classifications
C; C23; C23F; C23F13/00; C23F13/02; C23F13/06; C23F13/08; C23F13/16; C23F2213/00; C23F2213/30; C23F2213/31
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
AN INSOLUBLE TRAILING ANODE FOR THE CATHODIC PROTECTION OF SHIPS COMPRISING AN ELECTRICALLY CONDUCTIVE TUBE, A TANTALUM END PLUG MOUNTED AT EACH END OF SAID TUBE, A THICK NON-POROUS COATING ON SAID TUBE MADE OF ONE THE GROUP CONSISTING OF TANTALUM AND TITUNIUM, A THIN, POROUS PLATINUM LAYER ON SAID COATING, AND MEANS WITHIN SAID TUBE FOR VARYING THE WEIGHT PER FOOT OF SAID ANODE COMPRISING A POLYESTER RESIN AND A SAND FILLER WHEREBY THE HYDRODYAMIC DRAG OF SAID ANODE MAY BE MADE EQUAL TO THAT OF A TRAILING CABLE FROM A SHIP.
Claim 2
Dependent Claim
93 words
AN INSOLUBLE TRAILING ANODE FOR THE CATHODIC PROTECTION OF SHIPS COMPRISING AN ELECTRICALLY CONDUCTIVE TUBE, A TANTALUM END PLUG MOUNTED AT EACH END OF SAID TUBE, A THICK NON-POROUS COATING ON SAID TUBE MADE OF ONE THE GROUP CONSISTING OF TANTALUM AND TITUNIUM, A THIN, POROUS PLATINUM LAYER ON SAID COATING, AND MEANS WITHIN SAID TUBE FOR VARYING THE WEIGHT PER FOOT OF SAID ANODE COMPRISING A POLYESTER RESIN AND A SAND FILLER WHEREBY THE HYDRODYAMIC DRAG OF SAID ANODE MAY BE MADE EQUAL TO THAT OF A TRAILING CABLE FROM A SHIP.
References Cited (Backward Citations)
US327461A
Cited
US1077920A
Cited
US1477099A
Cited
US1951723A
Cited
US2795541A
Cited
FR1099587A
Cited
US2863819A
Cited
US2916429A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-06-11 | 1965-12-11 | 1966-06-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-06-11 | 1969-12-11 | 1970-06-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-06-11 | 1973-12-11 | 1974-06-12 | $7700.00 | Window Closed / Lapsed |