US3623211A
Expired / Lapsed
US
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Method of framing a foil portion
Assignee: SCHWEIGER AND SCHWEIZER AG
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Filing: 1969-10-06
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Granted: 1971-11-30
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Expires: 1989-10-06
Abstract
Abstract IN ORDER TO FRAME A FOIL PORTION WITH A MIRROR SURFACE, A FOIL IS PERFORATED ALONG A CIRCULAR LINE, A MARGINAL ZONE OF THE FOIL IS FRICTIONALLY HELD WITHIN THE ENDLESS LINE, THE FOIL IS CUT ALONG THE ENDLESS LINE, AND THE MARGINAL ZONE IS FIRMLY CLAMPED AND MOVED OVER A FIRST FRAME PART AND TENSIONED, WHEREUPON A SECOND FRAME PART IS PRESSED AGAINST THE FIRST FRAME PART AND CLAMPS THE TENSIONED FOIL TO THE FIRST FRAME PART WITHOUT ANY WRINKLES OF FOLDS.
Inventors
- 👤 Gerhard Zuhlke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 23:20
CPC Classifications
B; B29; B29D; B29D11/00; B29D11/00596; B26; B26D; B26D1/00; Y; Y10; Y10S; Y10S29/00; Y10S29/042; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49863; Y10T29/49867; Y10T29/51; Y10T29/5136; Y10T29/5137; Y10T29/53; Y10T29/53313; Y10T29/53383; Y10T29/53387; Y10T29/53678
Claims Analysis
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References Cited (Backward Citations)
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-11-29 | 1975-05-31 | 1975-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-11-29 | 1979-05-31 | 1979-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-11-29 | 1983-05-31 | 1983-11-30 | $7700.00 | Window Closed / Lapsed |