US3330120A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Weep valve with inserting device
Assignee: Guy F Atkinson Co
•
Filing: 1964-12-28
•
Granted: 1967-07-11
•
Expires: 1984-12-28
Abstract
No abstract record available.
Inventors
- 👤 Ray N Atkinson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 08:02
CPC Classifications
E; E02; E02B; E02B5/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
95 words
IN COMBINATION WITH A VALVE FOR PERMITTING LIQUID IN A DRAINAGE SPACE TO FLOW INTO A CANAL WHEREIN THE VALVE COMPRISES A PERFORATED TUBE TOGETHER WITH A HEAD ATTACHED TO ONE END OF THE TUBE AND A VALVE FLAP MOVABLY ATTACHED TO THE HEAD AND ADAPTED TO ENGAGE THE TOP SURFACE OF THE HEAD AND TO BE UNSEATED BY PRESSURE WITHIN THE TUBE, THE IMPROVEMENT WHICH COMPRISES: MEANS FOR INSERTING THE VALVE INTO THE DRAINAGE SPACE WHICH INCLUDES, A DRIVING HEAD HAVING A DISK-LIKE PORTION AND HAVING ITS BOTTOM FACE ADAPTED TO ESTABLISH ABUTTING DRIV-
Claim 2
Dependent Claim
95 words
IN COMBINATION WITH A VALVE FOR PERMITTING LIQUID IN A DRAINAGE SPACE TO FLOW INTO A CANAL WHEREIN THE VALVE COMPRISES A PERFORATED TUBE TOGETHER WITH A HEAD ATTACHED TO ONE END OF THE TUBE AND A VALVE FLAP MOVABLY ATTACHED TO THE HEAD AND ADAPTED TO ENGAGE THE TOP SURFACE OF THE HEAD AND TO BE UNSEATED BY PRESSURE WITHIN THE TUBE, THE IMPROVEMENT WHICH COMPRISES: MEANS FOR INSERTING THE VALVE INTO THE DRAINAGE SPACE WHICH INCLUDES, A DRIVING HEAD HAVING A DISK-LIKE PORTION AND HAVING ITS BOTTOM FACE ADAPTED TO ESTABLISH ABUTTING DRIV-
References Cited (Backward Citations)
US1403766A
Cited
US1847853A
Cited
US1998643A
Cited
US2050215A
Cited
US2972871A
Cited
US3183984A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-07-10 | 1971-01-09 | 1971-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-10 | 1975-01-09 | 1975-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-10 | 1979-01-09 | 1979-07-11 | $7700.00 | Window Closed / Lapsed |