US2777816A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic sewage treatment and disposal unit
Assignee: American Ship Building Co
•
Filing: 1951-09-07
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Granted: 1957-01-15
•
Expires: 1971-09-07
Abstract
No abstract record available.
Inventors
- 👤 George P Schumacker
- 👤 Egerton B Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:57
CPC Classifications
C; C02; C02F; C02F1/00; C02F1/72; C02F1/76; C02F2103/00; C02F2103/008; C02F2201/00; C02F2201/001; C02F2209/00; C02F2209/42
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
176 words
A PREFABRICATED SEWAGE DISPOSAL UNIT FOR SHIPBOARD USE COMPRISING; A UNITARY STRUCTURE CONSTITUTING A PREFORMED BASE; SUBSTANTIALLY CLOSED TANK MOUNTED ON SAID BASE AND HAVING THEREIN A SEWAGE RECEIVING AND STORAGE CHAMBER AND A SEWAGE TREATING CHAMBER; A TRANSFER PUMP; A DELIVERY PUMP; DRIVING MOTORS CONNECTED WITH SAID PUMPS TO DRIVE THE SAME; MEANS ON SAID BASE FORMING FOUNDATIONS FOR SAID TRANSFER AND DELIVERY PUMPS AND THEIR DRIVING MOTORS AND HAVING SAID PUMPS AND MOTORS MOUNTED ATHEREON; CONDUIT MEANS CONNECTAING THE INTAKE OF SAID TRANSFER PUMP WITH SAID RECEIVING CHAMBER; CONDUIT MEAND CONNECTING THE DISCHARGE OF SAID TRANSFER PUMP WITH SAID TREATING CHAMBER; CONDUIT MEANS CONNECTING THE INTAKE OF SAID DELIVERY PUMP WITH SAID TREATING CHAMBER; AND CONDUIT MEANS EXTENDING FROM SAID DELIVERY PUMP AND ADAPTED FOR CONNECTION WITH AN OVERBOARD DISCHARGE MEANS; SAID BASE, TANK, PUMP, DRIVING MOTORS AND CONDUIT MEANS BEING ALL ASSEMBLED IN THEIR CONNECTED AND OPERATIVE RELATION TO CONSTITUTE A PREFABRICATED UNIT ADAPTED TO BE TESTED AND TRANSPORTED AS SUCH PRIOR TO INSTALLATION FOAR ITS INTENDED REGULAR SERVICE OPERATION ON A SHIP.
Claim 2
Dependent Claim
176 words
A PREFABRICATED SEWAGE DISPOSAL UNIT FOR SHIPBOARD USE COMPRISING; A UNITARY STRUCTURE CONSTITUTING A PREFORMED BASE; SUBSTANTIALLY CLOSED TANK MOUNTED ON SAID BASE AND HAVING THEREIN A SEWAGE RECEIVING AND STORAGE CHAMBER AND A SEWAGE TREATING CHAMBER; A TRANSFER PUMP; A DELIVERY PUMP; DRIVING MOTORS CONNECTED WITH SAID PUMPS TO DRIVE THE SAME; MEANS ON SAID BASE FORMING FOUNDATIONS FOR SAID TRANSFER AND DELIVERY PUMPS AND THEIR DRIVING MOTORS AND HAVING SAID PUMPS AND MOTORS MOUNTED ATHEREON; CONDUIT MEANS CONNECTAING THE INTAKE OF SAID TRANSFER PUMP WITH SAID RECEIVING CHAMBER; CONDUIT MEAND CONNECTING THE DISCHARGE OF SAID TRANSFER PUMP WITH SAID TREATING CHAMBER; CONDUIT MEANS CONNECTING THE INTAKE OF SAID DELIVERY PUMP WITH SAID TREATING CHAMBER; AND CONDUIT MEANS EXTENDING FROM SAID DELIVERY PUMP AND ADAPTED FOR CONNECTION WITH AN OVERBOARD DISCHARGE MEANS; SAID BASE, TANK, PUMP, DRIVING MOTORS AND CONDUIT MEANS BEING ALL ASSEMBLED IN THEIR CONNECTED AND OPERATIVE RELATION TO CONSTITUTE A PREFABRICATED UNIT ADAPTED TO BE TESTED AND TRANSPORTED AS SUCH PRIOR TO INSTALLATION FOAR ITS INTENDED REGULAR SERVICE OPERATION ON A SHIP.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-01-15 | 1960-07-16 | 1961-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-01-15 | 1964-07-16 | 1965-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-01-15 | 1968-07-16 | 1969-01-15 | $7700.00 | Window Closed / Lapsed |