US3233306A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Tool for cutting thermoplastic film
Assignee: Dow Chemical Co
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Filing: 1965-03-19
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Granted: 1966-02-08
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Expires: 1985-03-19
Abstract
No abstract record available.
Inventors
- 👤 Philip G Kessel
- 👤 Kenneth J Cleereman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 11:09
CPC Classifications
B; B26; B26D; B26D3/00; B26D3/16; B26D3/161; B26D1/00; B26D1/01; B26D1/02; B26D1/025; Y; Y10; Y10T; Y10T407/00; Y10T407/25; Y10T407/26; Y10T82/00; Y10T82/16; Y10T82/16426
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
162 words
A TOOL PARTICULARLY ADAPTED AND SUITED FOR THE CUTTING OF ROLLS OF WOUND THERMOPLASTIC RESINOUS FILM, THE TOOL COMPRISING IN COOPERATIVE COMBINATION TWO SPACED CUTTING BITS RIGIDLY MOUNTED ON A SHANK, THE BITS HAVING CUTTING EDGES, THE CUTTING EDGES BEING DEFINED BY A FIRST SURFACE AND A SECOND SURFACE, THE FIRST SURFACES FORMING A SIDE CLEARANCE ANGLE OF FROM ABOUT 1/2* TO ABUT 30* WITH A LONGITUDINAL FEED AXIS OF THE SHANK, THE SECOND SURFACES OF THE BITS BEING SYMMETRICALLY DISPOSED ON EITHER SIDE OF THE FEED AXIS OF THE BIT AND FORMING AN INCLUDED ANGLE OF LESS THAN ABOUT 70* THE CUTTING EDGES IN ANGULAR RELATIONSHIP TO THE PLANE NORMAL TO THE LONGITUDINAL AXIS OF THE SHANK, EACH OF SAID BITS TERMINATING IN A WORK ENGAGING POINT REMOTELY DISPOSED FROM SAID SHANK, THE SECOND SURFACES OF THE BITS AND THE TOOL SHANK DEFINING A SUBSTANTIALLY UNOBSTRUCTED SPACE THEREBETWEEN WHEREBY THE POINTS OF THE BITS MAY ENGAGE A SOLID PLANAR SURFACE SIMULTANEOUSLY.
Claim 2
Dependent Claim
162 words
A TOOL PARTICULARLY ADAPTED AND SUITED FOR THE CUTTING OF ROLLS OF WOUND THERMOPLASTIC RESINOUS FILM, THE TOOL COMPRISING IN COOPERATIVE COMBINATION TWO SPACED CUTTING BITS RIGIDLY MOUNTED ON A SHANK, THE BITS HAVING CUTTING EDGES, THE CUTTING EDGES BEING DEFINED BY A FIRST SURFACE AND A SECOND SURFACE, THE FIRST SURFACES FORMING A SIDE CLEARANCE ANGLE OF FROM ABOUT 1/2* TO ABUT 30* WITH A LONGITUDINAL FEED AXIS OF THE SHANK, THE SECOND SURFACES OF THE BITS BEING SYMMETRICALLY DISPOSED ON EITHER SIDE OF THE FEED AXIS OF THE BIT AND FORMING AN INCLUDED ANGLE OF LESS THAN ABOUT 70* THE CUTTING EDGES IN ANGULAR RELATIONSHIP TO THE PLANE NORMAL TO THE LONGITUDINAL AXIS OF THE SHANK, EACH OF SAID BITS TERMINATING IN A WORK ENGAGING POINT REMOTELY DISPOSED FROM SAID SHANK, THE SECOND SURFACES OF THE BITS AND THE TOOL SHANK DEFINING A SUBSTANTIALLY UNOBSTRUCTED SPACE THEREBETWEEN WHEREBY THE POINTS OF THE BITS MAY ENGAGE A SOLID PLANAR SURFACE SIMULTANEOUSLY.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-02-07 | 1969-08-09 | 1970-02-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-02-07 | 1973-08-09 | 1974-02-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-02-07 | 1977-08-09 | 1978-02-08 | $7700.00 | Window Closed / Lapsed |