Patent US2797439A successfully refreshed from Google Patents.
US2797439A
Expired / Lapsed
US
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Means for making a lamp shade
Assignee: Individual
•
Filing: 1952-11-03
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Granted: 1957-07-02
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Expires: 1972-11-03
Abstract
No abstract record available.
Inventors
- 👤 Gustave W Borkland
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 09:35
CPC Classifications
F; F21; F21V; F21V1/00; F21V1/26; B; B29; B29C; B29C69/00; B29C48/00; B29C48/001; B29C48/0019; B29C48/03; B29C48/07; B29C48/08; B29C48/09; Y; Y10; Y10S; Y10S264/00; Y10S264/50
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
USRE23171E
Cited
US1475623A
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US1588933A
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US1885951A
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US1989015A
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US2415504A
Cited
US2478165A
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US2493439A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-07-01 | 1960-12-31 | 1961-07-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-07-01 | 1964-12-31 | 1965-07-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-07-01 | 1968-12-31 | 1969-07-02 | $7700.00 | Window Closed / Lapsed |