US2742788A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sewer sampler
Assignee: Individual
•
Filing: 1955-07-19
•
Granted: 1956-04-24
•
Expires: 1975-07-19
Abstract
No abstract record available.
Inventors
- 👤 Paul V Henton
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:23
CPC Classifications
G; G01; G01N; G01N1/00; G01N1/02; G01N1/10
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
107 words
APPARATUS FOR TAKING A SEWER SAMPLE, COMPRISING A PAIR OF CLOSELY SPACED VERTICAL SCREENS JOINED AT THEIR FORWARD ENDS IN A POINT AND HAVING VERTICAL LOUVERS, A WEIR ATTACHED TO THE SCREENS AT THEIR REAR ENDS AND HAVING ITS UPPER END AT A MID-REGION OF THE LOUVERS, A NARROW CHANNEL LEADING REARWARDLY FROM THE SCREENS AT THE OPPOSITE SIDE OF THE WEIR FROM THE SCREENS, A LARGE VERTICAL CYLINDER CONNECTED WITH THE CHANNEL, AND A CONE CONNECTED TO THE LOWER END OF THE CYLINDER AND HAVING A SMALL CENTRAL DISCHARGE OPENING, WHEREBY WHEN THE APPARATUS IS PLACED IN AN ENLARGED CHAMBER IN A SEWAGE LINE WITH THE
Claim 2
Dependent Claim
107 words
APPARATUS FOR TAKING A SEWER SAMPLE, COMPRISING A PAIR OF CLOSELY SPACED VERTICAL SCREENS JOINED AT THEIR FORWARD ENDS IN A POINT AND HAVING VERTICAL LOUVERS, A WEIR ATTACHED TO THE SCREENS AT THEIR REAR ENDS AND HAVING ITS UPPER END AT A MID-REGION OF THE LOUVERS, A NARROW CHANNEL LEADING REARWARDLY FROM THE SCREENS AT THE OPPOSITE SIDE OF THE WEIR FROM THE SCREENS, A LARGE VERTICAL CYLINDER CONNECTED WITH THE CHANNEL, AND A CONE CONNECTED TO THE LOWER END OF THE CYLINDER AND HAVING A SMALL CENTRAL DISCHARGE OPENING, WHEREBY WHEN THE APPARATUS IS PLACED IN AN ENLARGED CHAMBER IN A SEWAGE LINE WITH THE
References Cited (Backward Citations)
US2270511A
Cited
US2705425A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1959-04-24 | 1959-10-24 | 1960-04-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1963-04-24 | 1963-10-24 | 1964-04-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1967-04-24 | 1967-10-24 | 1968-04-24 | $7700.00 | Window Closed / Lapsed |