US3196586A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Shaping tool for cellular polystyrene
Assignee: Armstrong World Industries Inc
•
Filing: 1963-07-01
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Granted: 1965-07-27
•
Expires: 1983-07-01
Abstract
No abstract record available.
Inventors
- 👤 Milton G Brown
- 👤 Fred F Platner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:37
CPC Classifications
B; B26; B26D; B26D3/00; B26D3/006; B26D1/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
45 words
A DISC-SHAPED TOOL ADAPTED TO CUT FOAM POLYSTYRENE COMPRISING A CIRCULAR BASE MEMBER HAVING PLANAR OPPOSING CUTTING FACES FORMING AN ANGLE IN THE RANGE OF 8*-12* AT THE OUTER PERIPHERAL EDGE THEREOF, AND A MULTIPLICITY OF SEPARATE SPACED PARTICLES OF GRIT IN A GRIT SIZE
Claim 2
Dependent Claim
45 words
A DISC-SHAPED TOOL ADAPTED TO CUT FOAM POLYSTYRENE COMPRISING A CIRCULAR BASE MEMBER HAVING PLANAR OPPOSING CUTTING FACES FORMING AN ANGLE IN THE RANGE OF 8*-12* AT THE OUTER PERIPHERAL EDGE THEREOF, AND A MULTIPLICITY OF SEPARATE SPACED PARTICLES OF GRIT IN A GRIT SIZE
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-07-26 | 1969-01-25 | 1969-07-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-07-26 | 1973-01-25 | 1973-07-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-07-26 | 1977-01-25 | 1977-07-27 | $7700.00 | Window Closed / Lapsed |