Patent EP0371457A2 successfully refreshed from Google Patents.
US2693783A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for depositing a light-diffusing coating on surfaces
Assignee: Individual
•
Filing: 1951-10-01
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Granted: 1954-11-09
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Expires: 1971-10-01
Abstract
No abstract record available.
Inventors
- 👤 Gunther Gunnar Georg Johan
- 👤 Rosengren Gosta Birger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 11:13
CPC Classifications
H; H01; H01J; H01J9/00; H01J9/20; C; C03; C03C; C03C17/00; C03C17/001; C03C17/003; C03C17/004
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2123706A
Cited
US2164332A
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US2445310A
Cited
US2545896A
Cited
US2489259A
Cited
US2593920A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1957-11-08 | 1958-05-10 | 1958-11-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-11-08 | 1962-05-10 | 1962-11-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-11-08 | 1966-05-10 | 1966-11-09 | $7700.00 | Window Closed / Lapsed |