US2545896A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric lamp, light diffusing coating therefor and method of manufacture
Assignee: General Electric Co
•
Filing: 1948-01-07
•
Granted: 1951-03-20
•
Expires: 1968-01-07
Abstract
No abstract record available.
Inventors
- 👤 Pipkin Marvin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 10:44
CPC Classifications
H; H01; H01K; H01K3/00; B; B05; B05B; B05B13/00; B05B13/06; B05B13/0627; C; C03; C03C; C03C17/00; C03C17/001; C03C17/003; C03C17/004; C03C17/22; C03C17/23; C03C17/245; C03C17/25; H01J; H01J5/00; H01J5/02; H01J5/08; H01J9/00; H01J9/20; H01K1/00; H01K1/28; H01K1/32; H01K1/50; C03C2217/00; C03C2217/20; C03C2217/21; C03C2217/213; C03C2218/00; C03C2218/10; C03C2218/11; C03C2218/114; C03C2218/15; C03C2218/152; C03C2218/17; Y; Y10; Y10T; Y10T428/00; Y10T428/25; Y10T428/251; Y10T428/259
Claims Analysis
Total Claims: 0
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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) | 1954-03-19 | 1954-09-18 | 1955-03-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1958-03-19 | 1958-09-18 | 1959-03-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1962-03-19 | 1962-09-18 | 1963-03-20 | $7700.00 | Window Closed / Lapsed |