Patent NL95045C successfully refreshed from Google Patents.
Patent US3073084A successfully refreshed from Google Patents.
US3073084A
Expired / Lapsed
US
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Assignee: Howard Hardware Products Inc
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Filing: 1962-01-18
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Granted: 1963-01-15
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Expires: 1982-01-18
Abstract
No abstract record available.
Inventors
- 👤 Joel A Howard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:37
CPC Classifications
B; B24; B24D; B24D15/00; B24D15/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
232 words
IN AN ARTICLE OF THE CHARACTER DESCRIBED, A FLAT, SUBSTANTIALLY RECTANGULAR BOTTOM MEMBER HAVING AN UPWARD FLANGE ALONG ITS FRONT AND REAR EDGES RESPECTIVELY AND A CHANNEL ALONG AN INTERMEDIATE PART OF EACH OF ITS SIDE EDGES ABOVE THE BOTTOM SURFACE OF SAID FLAT BOTTOM MEMBER; THE LONGITUDINAL OPENINGS OF SAID CHANNELS BEING DIRECTLY OPPOSITE EACH OTHER AND SAID FLANGES BEING IN A NONCONVERGENT RELATION UPWARDLY FROM SAID FLAT BOTTOM MEMBER; AN ABRASIVE STRIP IN STRETCHED CONDITION BEING POSITIONED AGAINST THE BOTTOM SURFACE OF SAID FLAT BOTTOM MEMBER AND EACH END PORTION OF SAID STRIP BEING AROUND AND AGAINST THE SURFACES OF SAID FLANGES RESPECTIVELY AND EXTENDING SHORT OF THE ENDS OF SAID CHANNELS RESPECTIVELY, AGAINST THE TOP SURFACE OF SAID BOTTOM FLAT MEMBER AND A TOP MEMBER COMPRISING TWO SPACED COPLANAR FOOT ELEMENTS CONNECTED BY A CENTRALLY POSITIONED HANDLE ELEMENT HAVING SOME RESILIENT QUALITY TO BE DEFORMED TO REDUCE THE DISTANCE BETWEEN THE REMOTE SIDE EDGES OF SAID FEET SO THAT THE TOP MEMBER IS ENTERABLE BETWEEN SAID FLANGES AND CHANNELS; THE SIDE EDGES OF SAID FEET BETING ENTERED INTO SAID CHANNELS RESPECTIVELY AND THE CORNERS OF SAID FEET PRESSING THE END PORTIONS OF SAID ABRASIVE STRIP TIGHTLY AGAINST THE TOP SURFACE OF SAID FLAT BOTTOM MEMBER; SAID TOP MEMBER BEING IN LOOSE FIT BETWEEN THE ABRASIVE MATERIAL ON THE FLANGES AND ITS FEET BEING IN SNUG FIT IN SAID CHANNELS.
Claim 2
Dependent Claim
232 words
IN AN ARTICLE OF THE CHARACTER DESCRIBED, A FLAT, SUBSTANTIALLY RECTANGULAR BOTTOM MEMBER HAVING AN UPWARD FLANGE ALONG ITS FRONT AND REAR EDGES RESPECTIVELY AND A CHANNEL ALONG AN INTERMEDIATE PART OF EACH OF ITS SIDE EDGES ABOVE THE BOTTOM SURFACE OF SAID FLAT BOTTOM MEMBER; THE LONGITUDINAL OPENINGS OF SAID CHANNELS BEING DIRECTLY OPPOSITE EACH OTHER AND SAID FLANGES BEING IN A NONCONVERGENT RELATION UPWARDLY FROM SAID FLAT BOTTOM MEMBER; AN ABRASIVE STRIP IN STRETCHED CONDITION BEING POSITIONED AGAINST THE BOTTOM SURFACE OF SAID FLAT BOTTOM MEMBER AND EACH END PORTION OF SAID STRIP BEING AROUND AND AGAINST THE SURFACES OF SAID FLANGES RESPECTIVELY AND EXTENDING SHORT OF THE ENDS OF SAID CHANNELS RESPECTIVELY, AGAINST THE TOP SURFACE OF SAID BOTTOM FLAT MEMBER AND A TOP MEMBER COMPRISING TWO SPACED COPLANAR FOOT ELEMENTS CONNECTED BY A CENTRALLY POSITIONED HANDLE ELEMENT HAVING SOME RESILIENT QUALITY TO BE DEFORMED TO REDUCE THE DISTANCE BETWEEN THE REMOTE SIDE EDGES OF SAID FEET SO THAT THE TOP MEMBER IS ENTERABLE BETWEEN SAID FLANGES AND CHANNELS; THE SIDE EDGES OF SAID FEET BETING ENTERED INTO SAID CHANNELS RESPECTIVELY AND THE CORNERS OF SAID FEET PRESSING THE END PORTIONS OF SAID ABRASIVE STRIP TIGHTLY AGAINST THE TOP SURFACE OF SAID FLAT BOTTOM MEMBER; SAID TOP MEMBER BEING IN LOOSE FIT BETWEEN THE ABRASIVE MATERIAL ON THE FLANGES AND ITS FEET BEING IN SNUG FIT IN SAID CHANNELS.
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) | 1966-01-14 | 1966-07-16 | 1967-01-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-01-14 | 1970-07-16 | 1971-01-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-01-14 | 1974-07-16 | 1975-01-15 | $7700.00 | Window Closed / Lapsed |