Patent US2099876A successfully refreshed from Google Patents.
Patent US2629899A successfully refreshed from Google Patents.
US2629899A
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Method of smoothing and shaping cellular polystyrene
Assignee: General American Transportation Corp
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Filing: 1949-10-13
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Granted: 1953-03-03
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Expires: 1969-10-13
Abstract
No abstract record available.
Inventors
- 👤 Edmund R Aller
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:12
CPC Classifications
B; B29; B29C; B29C59/00; B29C59/02; B29C44/00; B29C44/34; B29C44/56; B29C2059/027; B29K; B29K2025/00; B29K2105/00; B29K2105/04; Y; Y10; Y10S; Y10S220/00; Y10S220/14; Y10S264/00; Y10S264/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
80 words
THE METHOD OF SHAPING A SLAB OF FOAMED CELLULAR POLYSTYRENE AND FINISHING A SURFACE THEREON TO RECEIVE AN ADHESIVE BY WHICH THE MATERIAL IS SECURED TO ANOTHER PIECE OF MATERIAL WHICH COMPRISES: ENGAGING THE SLAB WITH A GENERALLY CYLINDRICAL TOOL THE ELEMENTS OF WHICH CONFORM TO THE SHAPE TO BE IMPARTED TO THE SLAB; REVOLVING THE TOOL AT A SPEED HIGH ENOUGH TO CAUSE FRICTIONAL HEAT SUFFICIENT ONLY TO SOFTEN THE PORTIONS OF THE MATEIAL THAT COME IN CONTACT WITH
Claim 2
Independent Claim
80 words
THE METHOD OF SHAPING A SLAB OF FOAMED CELLULAR POLYSTYRENE AND FINISHING A SURFACE THEREON TO RECEIVE AN ADHESIVE BY WHICH THE MATERIAL IS SECURED TO ANOTHER PIECE OF MATERIAL WHICH COMPRISES: ENGAGING THE SLAB WITH A GENERALLY CYLINDRICAL TOOL THE ELEMENTS OF WHICH CONFORM TO THE SHAPE TO BE IMPARTED TO THE SLAB; REVOLVING THE TOOL AT A SPEED HIGH ENOUGH TO CAUSE FRICTIONAL HEAT SUFFICIENT ONLY TO SOFTEN THE PORTIONS OF THE MATEIAL THAT COME IN CONTACT WITH
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) | 1956-03-02 | 1956-09-01 | 1957-03-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-02 | 1960-09-01 | 1961-03-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-02 | 1964-09-01 | 1965-03-03 | $7700.00 | Window Closed / Lapsed |