US3363797A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Protective cover
Assignee: WILLIAM C ROESE
•
Filing: 1965-02-17
•
Granted: 1968-01-16
•
Expires: 1985-02-17
Abstract
No abstract record available.
Inventors
- 👤 William C Roese
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:38
CPC Classifications
E; E02; E02D; E02D29/00; E02D29/12; E02D29/14; Y; Y10; Y10T; Y10T137/00; Y10T137/6851; Y10T137/6966; Y10T137/6991; Y10T137/6995; Y10T137/7021
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
130 words
IN SUMP MEANS WHICH INCLUDES A SUNKEN SHAFT, PUMP MEANS ADJACENT THE BOTTOM OF THE SHAFT, AND A PUMP DISCHARGE CONDUIT EXTENDING UPWARDLY FROM SAID PUMP MEANS OF SAID SHAFT, THE IMPROVEMENT WHICH COMPRISES A PROTECTIVE COVER FOR DISPOSITION OVER THE OPEN END OF SAID SHAFT, SAID COVER HAVING AN APERTURE FORMED THEREIN AND HAVING A SLIT EXTENDING RADIALLY OUTWARDLY FROM THE APERTURE TO ITS CIRCUMFERENTIAL EDGE, SAID COVER BEING FORMED OF A RESILIENT MATERIAL SO THAT IT MAY BE TEMPORARILY DEFORMED BY SKEWED MOVEMENT ALONG THE SLIT TO PERMIT SAID COVER TO BE DISPOSED OVER SAID SHAFT IN SURROUNDING RELATION TO THE DISCHRGE CONDUIT, THE APERTURE IN SAID COVER COOPERATIVELY ENGAGING THE FIXED DISCHARGE CONDUIT SO THAT ONLY RESTRICTED MOVEMENT OF SAID COVER RELATIVE TO SAID SHAFT IS PERMITTED.
Claim 2
Dependent Claim
130 words
IN SUMP MEANS WHICH INCLUDES A SUNKEN SHAFT, PUMP MEANS ADJACENT THE BOTTOM OF THE SHAFT, AND A PUMP DISCHARGE CONDUIT EXTENDING UPWARDLY FROM SAID PUMP MEANS OF SAID SHAFT, THE IMPROVEMENT WHICH COMPRISES A PROTECTIVE COVER FOR DISPOSITION OVER THE OPEN END OF SAID SHAFT, SAID COVER HAVING AN APERTURE FORMED THEREIN AND HAVING A SLIT EXTENDING RADIALLY OUTWARDLY FROM THE APERTURE TO ITS CIRCUMFERENTIAL EDGE, SAID COVER BEING FORMED OF A RESILIENT MATERIAL SO THAT IT MAY BE TEMPORARILY DEFORMED BY SKEWED MOVEMENT ALONG THE SLIT TO PERMIT SAID COVER TO BE DISPOSED OVER SAID SHAFT IN SURROUNDING RELATION TO THE DISCHRGE CONDUIT, THE APERTURE IN SAID COVER COOPERATIVELY ENGAGING THE FIXED DISCHARGE CONDUIT SO THAT ONLY RESTRICTED MOVEMENT OF SAID COVER RELATIVE TO SAID SHAFT IS PERMITTED.
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) | 1971-01-15 | 1971-07-17 | 1972-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1975-01-15 | 1975-07-17 | 1976-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1979-01-15 | 1979-07-17 | 1980-01-16 | $7700.00 | Window Closed / Lapsed |