US3115148A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sewerage systems
Assignee: Individual
•
Filing: 1959-05-27
•
Granted: 1963-12-24
•
Expires: 1979-05-27
Abstract
No abstract record available.
Inventors
- 👤 Liijendahl Sven Algot Joel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 02:27
CPC Classifications
E; E03; E03F; E03F1/00; E03F1/006; C; C02; C02F; C02F2307/00; C02F2307/08; Y; Y10; Y10T; Y10T137/00; Y10T137/2931; Y10T137/3109; Y10T137/3115; Y10T137/3127; Y10T137/7722; Y10T137/7781; Y10T137/7835; Y10T137/8593; Y10T137/86187; Y10T137/87917; Y10T137/88054
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
A SEWERAGE SYSTEM FOR HANDLING WASTE PRODUCTS, COMPRISING A MAIN RECEPTACLE FOR COLLECTING WASTE PRODUCTS, A LOCAL RECEPTACLE UNDER VACUUM FOR COLLECTING WASTE PRODUCTS, A FIRST CONDUIT CONNECTING SAID RECEPTACLES TOGETHER, A SECOND CONDUIT CONNECTING SAID LOCAL RECEPTACLE TO A SOURCE OF WASTE PRODUCTS, A PRESSURE-SENSITIVE MEANS CONNECTED BETWEEN SAID LOCAL RECEPTACLE AND SAID SECOND CONDUIT FOR SUBSTANTIALLY DECOUPLING SAID SECOND CONDUIT AND SAID LOCAL RECEPTACLE WHEN SAID SECOND CONDUIT UNDERGOES A SUBSTANTIAL INCREASE IN PRESSURE FOR AT LEAST A PREDETERMINED TIME, AND PRESSURE MEANS CONNECTED TO ONE OF SAID RECEPTACLES FOR TRANSPORTING SAID WASTE PRODUCTS FROM SAID LOCAL RECEPTACLE TO SAID MAIN RECEPTACLE.
Claim 2
Dependent Claim
104 words
A SEWERAGE SYSTEM FOR HANDLING WASTE PRODUCTS, COMPRISING A MAIN RECEPTACLE FOR COLLECTING WASTE PRODUCTS, A LOCAL RECEPTACLE UNDER VACUUM FOR COLLECTING WASTE PRODUCTS, A FIRST CONDUIT CONNECTING SAID RECEPTACLES TOGETHER, A SECOND CONDUIT CONNECTING SAID LOCAL RECEPTACLE TO A SOURCE OF WASTE PRODUCTS, A PRESSURE-SENSITIVE MEANS CONNECTED BETWEEN SAID LOCAL RECEPTACLE AND SAID SECOND CONDUIT FOR SUBSTANTIALLY DECOUPLING SAID SECOND CONDUIT AND SAID LOCAL RECEPTACLE WHEN SAID SECOND CONDUIT UNDERGOES A SUBSTANTIAL INCREASE IN PRESSURE FOR AT LEAST A PREDETERMINED TIME, AND PRESSURE MEANS CONNECTED TO ONE OF SAID RECEPTACLES FOR TRANSPORTING SAID WASTE PRODUCTS FROM SAID LOCAL RECEPTACLE TO SAID MAIN RECEPTACLE.
References Cited (Backward Citations)
US382188A
Cited
US1303358A
Cited
US1587864A
Cited
US2300039A
Cited
US2400651A
Cited
US2822329A
Cited
US2884131A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-12-23 | 1967-06-24 | 1967-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-23 | 1971-06-24 | 1971-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-23 | 1975-06-24 | 1975-12-24 | $7700.00 | Window Closed / Lapsed |