US3179103A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cement scarifier
Assignee: Individual
•
Filing: 1963-04-01
•
Granted: 1965-04-20
•
Expires: 1983-04-01
Abstract
No abstract record available.
Inventors
- 👤 John T Doran
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 17:53
CPC Classifications
B; B28; B28D; B28D1/00; B28D1/18; B28D1/181
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
FOR USE IN A FLOOR FINISHING MACHINE HAVING AN ELEMENT ROTATABLE IN SPACED PROXIMITY ABOVE A FLOOR SURFACE, A SCARIFIER ADAPTED TO BE SECRED TO AND IN DEPENDENCY FROM SAID ROTATABLE MACHINE ELEMENT COMPRISING, A RIGID RECTANGULAR HOUSING HAVING ONE OPEN FACE LONGITUDINALLY THEREOF, TRANSVERSELY PAIRED BEARING SURFACES FORMED AT SPACED DISTANCES ALONG THOSE LONGITUDINAL SIDE WALL EDGES OF SAID HOUSING DEFINING THE OPEN FACE THEREIN, RIGID SHAFT ELEMENTS SUPPORTED ONE BETWEEN EACH TRANSVERSE PAIR OF BEARING SURFACES, PLURAL SPURRED DISCS LOOSELY TELESCOPED ON EACH SHAFT ELEMENT WITH THE PERIPHERIES OF SAID DISCS PROJECTING OUTWARDLY FROM THE OPEN FACE OF SAID HOUSING, AND MEANS QUICK DETACHABLY SECURING SAID SHAFT ELEMENTS IN ENGAGEMENT WITH SAID BEARING SURFACES
Claim 2
Dependent Claim
116 words
FOR USE IN A FLOOR FINISHING MACHINE HAVING AN ELEMENT ROTATABLE IN SPACED PROXIMITY ABOVE A FLOOR SURFACE, A SCARIFIER ADAPTED TO BE SECRED TO AND IN DEPENDENCY FROM SAID ROTATABLE MACHINE ELEMENT COMPRISING, A RIGID RECTANGULAR HOUSING HAVING ONE OPEN FACE LONGITUDINALLY THEREOF, TRANSVERSELY PAIRED BEARING SURFACES FORMED AT SPACED DISTANCES ALONG THOSE LONGITUDINAL SIDE WALL EDGES OF SAID HOUSING DEFINING THE OPEN FACE THEREIN, RIGID SHAFT ELEMENTS SUPPORTED ONE BETWEEN EACH TRANSVERSE PAIR OF BEARING SURFACES, PLURAL SPURRED DISCS LOOSELY TELESCOPED ON EACH SHAFT ELEMENT WITH THE PERIPHERIES OF SAID DISCS PROJECTING OUTWARDLY FROM THE OPEN FACE OF SAID HOUSING, AND MEANS QUICK DETACHABLY SECURING SAID SHAFT ELEMENTS IN ENGAGEMENT WITH SAID BEARING SURFACES
References Cited (Backward Citations)
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Cited
US1175207A
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US1435022A
Cited
US1663759A
Cited
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Cited
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Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-04-19 | 1968-10-19 | 1969-04-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-04-19 | 1972-10-19 | 1973-04-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-04-19 | 1976-10-19 | 1977-04-20 | $7700.00 | Window Closed / Lapsed |