Patent US5020879A successfully refreshed from Google Patents.
US5020879A
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Flexible replica grating
Assignee: Shimadzu Corp
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Filing: 1988-06-27
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Granted: 1991-06-04
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Expires: 2008-06-27
Abstract
Abstract A flexible replica grating having a metal layer of a wave-like shape, a synthetic resin layer for supporting the metal layer, and a flexible synthetic resin film for supporting the synthetic resin layer.
Inventors
- 👤 Nobuyuki Kuzuta
- 👤 Eiichi Hasegawa
- 👤 Teiyu Kimura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 21:48
CPC Classifications
G; G02; G02B; G02B6/00; G02B6/10; G02B6/12; G02B6/12007; G02B5/00; G02B5/18; G02B5/1847; G02B5/1852; G02B6/24; G02B6/26; G02B6/28; G02B6/293; G02B6/29304; G02B6/29316; G02B6/29325; G02B6/29326; G02B6/29328; G02B6/29379; G02B6/2938; G11; G11B; G11B5/00; G11B5/127; G11B5/187; G11B5/23; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31511; Y10T428/31515; Y10T428/31522; Y10T428/31678; Y10T428/31721
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
89 words
A flexible replica grating comprising: an outer flexible metal layer having a thickness of substantially 0.1 μm and further having a pair of mutually opposing surfaces each including a zig-zag surface pattern; an intermediate synthetic resin layer having a thickness in the range of substantially 10-20 μm and comprised of epoxy for supporting said metal layer to maintain the shape of said metal layer when flexed; and a flexible synthetic resin film having a thickness of substantially 125 μm and comprised of polyimide for supporting said synthetic resin layer.
Claim 2
Dependent Claim
89 words
A flexible replica grating comprising: an outer flexible metal layer having a thickness of substantially 0.1 μm and further having a pair of mutually opposing surfaces each including a zig-zag surface pattern; an intermediate synthetic resin layer having a thickness in the range of substantially 10-20 μm and comprised of epoxy for supporting said metal layer to maintain the shape of said metal layer when flexed; and a flexible synthetic resin film having a thickness of substantially 125 μm and comprised of polyimide for supporting said synthetic resin layer.
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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) | 1994-06-03 | 1994-12-03 | 1995-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-06-03 | 1998-12-03 | 1999-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-06-03 | 2002-12-03 | 2003-06-04 | $7700.00 | Window Closed / Lapsed |