Patent US3197871A successfully refreshed from Google Patents.
US3197871A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Scribing instruments
Assignee: Keuffel and Esser Co
•
Filing: 1961-04-20
•
Granted: 1965-08-03
•
Expires: 1981-04-20
Abstract
No abstract record available.
Inventors
- 👤 Charles H Stein
- 👤 William R Krause
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 09:45
CPC Classifications
B; B43; B43L; B43L9/00; B43L9/02; B43L9/06; B43K; B43K23/00; B43K23/02; B43K23/04; B43K8/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
236 words
A DEVICE FOR CUTTING ONE SIDE OF A LAMINATED MATERIAL TO PERMIT STRIPPING OF THE PORTION OF THE PLY BETWEEN CUTS, COMPRISING A CROSS-SHAPED BODY OF TRANSPARENT MATERIAL, LEGS EXTENDING DOWNWARDLY FROM THE STEM AND ARMS OF THE BODY THE FOOT ENDS OF THE LEGS PROVIDING FOR GUIDANCE OVER A SURFACE AND DEFINING A REFERENCE PLANE, AN EXTERNALLY THREADED TUBULAR GUIDE PERPENDICULAR TO SAID REFERENCE PLANE MOUNTED ADJACENT THE END OF THE HEAD OF THE BODY, A SHAFT EXTENDING THROUGH SAID TUBULAR GUIDE, A FIRST MOUNTING PLATE INCLUDING THE AXIS OF SAID SHAFT FIXED TO THE LOWER END OF SAID TUBULAR GUIDE, A SECOND MOUNTING PLATE TRANSVERSE TO AND FIXED TO SAID SHAFT AND FIRST PLATE, A COMPRESSION SPRING SURROUNDING THE UPPER END OF SAID SHAFT ENGAGING THE UPPER END OF SAID TUBULAR GUIDE AND A SHOULDER ON SAID SHAFT FOR URGING SAID SHAFT UPWARDLY, A CAP THREADED ON SAID TUBULAR GUIDE FOR ENGAGEMENT WITH THE UPPER END OF SAID SHAFT FOR LIMITING THE UPWARD MOVEMENT OF SAID SHAFT, A PIVOT PIN SPACED LATERALLY OF THE AXIS OF SAID SHAFT AND DOWNWARDLY OF SAID SECOND PLATE AND EXTENDING PERPENDICULARLY THROUGH AND FIXED TO SAID FIRST PLATE, A LEAF SPRING MOUNTED ON THE END OF SIAD SECOND PLATE ADJACENT SAID PIVOT PIN, SAID LEAF SPRING HAVING A LEAF PORTION POSITIONED WITH CLEARANCE ON EACH SIDE OF SAID SHAFT, A SOFA-SHAPED CUTTER POSITIONED ON EACH SIDE OF SAID
Claim 2
Independent Claim
236 words
A DEVICE FOR CUTTING ONE SIDE OF A LAMINATED MATERIAL TO PERMIT STRIPPING OF THE PORTION OF THE PLY BETWEEN CUTS, COMPRISING A CROSS-SHAPED BODY OF TRANSPARENT MATERIAL, LEGS EXTENDING DOWNWARDLY FROM THE STEM AND ARMS OF THE BODY THE FOOT ENDS OF THE LEGS PROVIDING FOR GUIDANCE OVER A SURFACE AND DEFINING A REFERENCE PLANE, AN EXTERNALLY THREADED TUBULAR GUIDE PERPENDICULAR TO SAID REFERENCE PLANE MOUNTED ADJACENT THE END OF THE HEAD OF THE BODY, A SHAFT EXTENDING THROUGH SAID TUBULAR GUIDE, A FIRST MOUNTING PLATE INCLUDING THE AXIS OF SAID SHAFT FIXED TO THE LOWER END OF SAID TUBULAR GUIDE, A SECOND MOUNTING PLATE TRANSVERSE TO AND FIXED TO SAID SHAFT AND FIRST PLATE, A COMPRESSION SPRING SURROUNDING THE UPPER END OF SAID SHAFT ENGAGING THE UPPER END OF SAID TUBULAR GUIDE AND A SHOULDER ON SAID SHAFT FOR URGING SAID SHAFT UPWARDLY, A CAP THREADED ON SAID TUBULAR GUIDE FOR ENGAGEMENT WITH THE UPPER END OF SAID SHAFT FOR LIMITING THE UPWARD MOVEMENT OF SAID SHAFT, A PIVOT PIN SPACED LATERALLY OF THE AXIS OF SAID SHAFT AND DOWNWARDLY OF SAID SECOND PLATE AND EXTENDING PERPENDICULARLY THROUGH AND FIXED TO SAID FIRST PLATE, A LEAF SPRING MOUNTED ON THE END OF SIAD SECOND PLATE ADJACENT SAID PIVOT PIN, SAID LEAF SPRING HAVING A LEAF PORTION POSITIONED WITH CLEARANCE ON EACH SIDE OF SAID SHAFT, A SOFA-SHAPED CUTTER POSITIONED ON EACH SIDE OF SAID
References Cited (Backward Citations)
US30722A
Cited
US1181921A
Cited
US1191725A
Cited
GB344121A
Cited
US1970476A
Cited
US2394452A
Cited
US2782501A
Cited
US2810960A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-08-02 | 1969-02-01 | 1969-08-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-08-02 | 1973-02-01 | 1973-08-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-08-02 | 1977-02-01 | 1977-08-03 | $7700.00 | Window Closed / Lapsed |