US3455722A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Glass having a colored zone whose boundary has been blurred and method of producing the same
Assignee: Nippon Sheet Glass Co Ltd
•
Filing: 1967-01-20
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Granted: 1969-07-15
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Expires: 1987-01-20
Abstract
No abstract record available.
Inventors
- 👤 Akira Kushihashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:40
CPC Classifications
B; B05; B05B; B05B13/00; B05B13/02; B05B13/0221; B05B13/0228; B05B13/04; B05B13/0405; B05B13/041; C; C03; C03C; C03C17/00; C03C17/001; C03C17/22; C03C17/23; C03C17/25; B05B13/0447; C03C2217/00; C03C2217/20; C03C2217/21; C03C2217/229; C03C2218/00; C03C2218/10; C03C2218/11; C03C2218/112; Y; Y10; Y10T; Y10T428/00; Y10T428/24; Y10T428/24802; Y10T428/24926
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US3244547A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1972-07-14 | 1973-01-13 | 1973-07-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1976-07-14 | 1977-01-13 | 1977-07-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1980-07-14 | 1981-01-13 | 1981-07-15 | $7700.00 | Window Closed / Lapsed |