US3327336A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tank cleaner and polisher
Assignee: Individual
•
Filing: 1965-10-23
•
Granted: 1967-06-27
•
Expires: 1985-10-23
Abstract
No abstract record available.
Inventors
- 👤 Richard C Mueller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 01:32
CPC Classifications
E; E04; E04H; E04H4/00; E04H4/12; E04H4/1209; E04H4/1236
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
55 words
A TANK CLEANER COMPRISING A CONDUIT MEANS ROTATABLY ATTACHED TO AN INLET MEANS, SAID INLET MEANS BEING LOCATED ON AN INSIDE SURFACE OF A TANK TO BE CLEANED; SAID CONDUIT MEANS AND SAID INSIDE SURFACE OF SAID TANK DEFINING A TUNNEL; AND A PLURALITY OF PORTS IN SAID CONDUIT MEANS IN COMMUNICATION WITH SAID TUNNEL.
Claim 2
Dependent Claim
55 words
A TANK CLEANER COMPRISING A CONDUIT MEANS ROTATABLY ATTACHED TO AN INLET MEANS, SAID INLET MEANS BEING LOCATED ON AN INSIDE SURFACE OF A TANK TO BE CLEANED; SAID CONDUIT MEANS AND SAID INSIDE SURFACE OF SAID TANK DEFINING A TUNNEL; AND A PLURALITY OF PORTS IN SAID CONDUIT MEANS IN COMMUNICATION WITH SAID TUNNEL.
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) | 1970-06-26 | 1970-12-26 | 1971-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-06-26 | 1974-12-26 | 1975-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-06-26 | 1978-12-26 | 1979-06-27 | $7700.00 | Window Closed / Lapsed |