Patent US3225842A successfully refreshed from Google Patents.
US3225842A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Self-propelled percussion tool assembly
Assignee: Rex Chainbelt Inc
•
Filing: 1963-01-07
•
Granted: 1965-12-28
•
Expires: 1983-01-07
Abstract
No abstract record available.
Inventors
- 👤 William R Roeschen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 23:23
CPC Classifications
E; E01; E01C; E01C23/00; E01C23/06; E01C23/12; E01C23/122; E01C23/124
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
94 words
IN A MOBILE PERCUSSION TOOL APPARATUS, A POWER DRIVEN CARRIAGE, A TRANSVERSE HORIZONTAL TRACKWAY MOVABLY MOUNTED AT ONE END OF SAID CARRIAGE, POWER DRIVEN MEANS OPERATIVELY CONNECTD TO RAISE OR LOWER SAID HORIZONTAL TRACKWAY BODILY RELATIVE TO SAID CARRIAGE, A FRAME MEMBER SLIDABLY MOUNTED ON SAID MOVABLE TRACKWAY FOR MOVEMENT THEREALONG TRANSVERSELY OF SAID CARRIAGE, A VERTICALLY DISPOSED GUIDEWAY PIVOTALLY MOUNTED ON SAID FRAME MEMBER FOR TILTING MOVEMENT AOBUT AN AXIS DISPOSED LONGITUDINALLY OF SAID CARRIAGE, AND A PERCUSSION TOOL SLIDABLY MOUNTED IN SAID VERTICALLY DISPOSED GUIDEWAY FOR RECIPROCATORY IMPACING OPERATION THEREIN, THE ARRANGE-
Claim 2
Dependent Claim
94 words
IN A MOBILE PERCUSSION TOOL APPARATUS, A POWER DRIVEN CARRIAGE, A TRANSVERSE HORIZONTAL TRACKWAY MOVABLY MOUNTED AT ONE END OF SAID CARRIAGE, POWER DRIVEN MEANS OPERATIVELY CONNECTD TO RAISE OR LOWER SAID HORIZONTAL TRACKWAY BODILY RELATIVE TO SAID CARRIAGE, A FRAME MEMBER SLIDABLY MOUNTED ON SAID MOVABLE TRACKWAY FOR MOVEMENT THEREALONG TRANSVERSELY OF SAID CARRIAGE, A VERTICALLY DISPOSED GUIDEWAY PIVOTALLY MOUNTED ON SAID FRAME MEMBER FOR TILTING MOVEMENT AOBUT AN AXIS DISPOSED LONGITUDINALLY OF SAID CARRIAGE, AND A PERCUSSION TOOL SLIDABLY MOUNTED IN SAID VERTICALLY DISPOSED GUIDEWAY FOR RECIPROCATORY IMPACING OPERATION THEREIN, THE ARRANGE-
References Cited (Backward Citations)
US845827A
Cited
US2004146A
Cited
US2659583A
Cited
US2659584A
Cited
US2642845A
Cited
US2651292A
Cited
US2928322A
Cited
US2892499A
Cited
US2832567A
Cited
US3089550A
Cited
US3172483A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-12-27 | 1969-06-28 | 1969-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-12-27 | 1973-06-28 | 1973-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-12-27 | 1977-06-28 | 1977-12-28 | $7700.00 | Window Closed / Lapsed |