Patent US3334447A successfully refreshed from Google Patents.
US3334447A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sanding machine
Assignee: Individual
•
Filing: 1965-09-28
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Granted: 1967-08-08
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Expires: 1985-09-28
Abstract
No abstract record available.
Inventors
- 👤 Treffle J Leveque
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 15:28
CPC Classifications
B; B24; B24B; B24B23/00; B24B23/06
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
119 words
A TOOL FOR SUFACE FINISHING WORKPIECES COMPRISING: (A) A FRAME, (B) A PAIR OF SPACED ROLLERS ROTATABLY CARRIED BY SAID FRAME, (C) AN ENDLESS, SURFACE-FINISHING BELT TRAINED AROUND SAID ROLLERS, (D) A BELT-ENGAGING BACKING SHOE CARRIED BY SAID FRAME FOR SUPPORTING THE WORKPIECE-ENGAING RUN OF SAID BELT BETWEEN SAID ROLLERS, AND (E) COACTING SURFACE MEANS ON SAID FRAME AND THE SIDE OF SAID BACKING SHOE FACING AWAY FROM SAID WORKPIECE ENGAGING RUN TO ENABLING SAID SHOE TO BE ROCKED ABOUT AN AXIS EXTENDING TRANSVERSELY OF THE ROTATIONAL AXES OF SAID ROLLERS, (F) SAID COACTING SURFACE MEANS COMPRISING A CROWNED SURFACE AND A FURTHER SURFACE SEPARAVLY ABUTTING SAID CROWNED SURFACE AND BEING RELATIVELY FLATTENED WITH RESPECT TO SAID CROWNED SURFACE.
Claim 2
Dependent Claim
119 words
A TOOL FOR SUFACE FINISHING WORKPIECES COMPRISING: (A) A FRAME, (B) A PAIR OF SPACED ROLLERS ROTATABLY CARRIED BY SAID FRAME, (C) AN ENDLESS, SURFACE-FINISHING BELT TRAINED AROUND SAID ROLLERS, (D) A BELT-ENGAGING BACKING SHOE CARRIED BY SAID FRAME FOR SUPPORTING THE WORKPIECE-ENGAING RUN OF SAID BELT BETWEEN SAID ROLLERS, AND (E) COACTING SURFACE MEANS ON SAID FRAME AND THE SIDE OF SAID BACKING SHOE FACING AWAY FROM SAID WORKPIECE ENGAGING RUN TO ENABLING SAID SHOE TO BE ROCKED ABOUT AN AXIS EXTENDING TRANSVERSELY OF THE ROTATIONAL AXES OF SAID ROLLERS, (F) SAID COACTING SURFACE MEANS COMPRISING A CROWNED SURFACE AND A FURTHER SURFACE SEPARAVLY ABUTTING SAID CROWNED SURFACE AND BEING RELATIVELY FLATTENED WITH RESPECT TO SAID CROWNED SURFACE.
References Cited (Backward Citations)
US677333A
Cited
US1419049A
Cited
US1493779A
Cited
US2199069A
Cited
US2423407A
Cited
US2586848A
Cited
US2565223A
Cited
US2592581A
Cited
US2660429A
Cited
US2720692A
Cited
GB736633A
Cited
US2701430A
Cited
US2817940A
Cited
US3176436A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1970-08-07 | 1971-02-06 | 1971-08-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-08-07 | 1975-02-06 | 1975-08-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-08-07 | 1979-02-06 | 1979-08-08 | $7700.00 | Window Closed / Lapsed |