US3294004A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sink
Assignee: Nuarc Co
•
Filing: 1963-12-16
•
Granted: 1966-12-27
•
Expires: 1983-12-16
Abstract
No abstract record available.
Inventors
- 👤 Harold R Benson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 16:55
CPC Classifications
G; G03; G03D; G03D13/00; G03D13/02; G03D13/04
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
64 words
A SINK FOR PROCESSING SENSITIZED MATERIALS AND THE LIKE, COMPRISING A BASE STRUCTURE; A PLURALITY OF VERTICALLY SAPCED SINK BASINS CARRIED BY SAID BASE STRUCTURE; DRAIN MEANS IN EACH OF SAID BASINS; MEANS FOR DIRECTING A FLOW OF HOT AND COLD WATER SELECTIVELY INTO EACH OF SAID BASINS INDEPENDENTLY OF THE OTHER BASINS; AND DARKROOM SAFE LIGHT MEANS POSITIONED ABOVE EACH OF SAID BASINS.
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) | 1969-12-26 | 1970-06-27 | 1970-12-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-26 | 1974-06-27 | 1974-12-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-26 | 1978-06-27 | 1978-12-27 | $7700.00 | Window Closed / Lapsed |