Patent US2271179A successfully refreshed from Google Patents.
US2271179A
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Method for producing light shades
Assignee: AMERICAN FIRSTOLINE Corp
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Filing: 1939-05-26
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Granted: 1942-01-27
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Expires: 1959-05-26
Abstract
No abstract record available.
Inventors
- 👤 Blomberg Albrecht
- 👤 Blomberg Hermann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 15:44
CPC Classifications
B; B32; B32B; B32B27/00; F; F21; F21V; F21V1/00; Y; Y10; Y10S; Y10S428/00; Y10S428/918; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1043; Y10T156/1044; Y10T156/1048; Y10T156/1052; Y10T156/1056; Y10T428/00; Y10T428/24; Y10T428/24479; Y10T428/24612; Y10T428/31504; Y10T428/31844; Y10T428/31848; Y10T428/31851; Y10T428/31971; Y10T428/31975; Y10T428/31978; Y10T428/31982; Y10T428/31986
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1945-01-26 | 1945-07-28 | 1946-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1949-01-26 | 1949-07-28 | 1950-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1953-01-26 | 1953-07-28 | 1954-01-27 | $7700.00 | Window Closed / Lapsed |