US2631341A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable blind or awning
Assignee: RHODE ISLAND ENGINEERING AND M
•
Filing: 1949-03-21
•
Granted: 1953-03-17
•
Expires: 1969-03-21
Abstract
No abstract record available.
Inventors
- 👤 Kenneth W Pettigrew
- 👤 Jr Charles A Kilvert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:03
CPC Classifications
E; E04; E04F; E04F10/00; E04F10/08; E04F10/10; Y; Y10; Y10T; Y10T70/00; Y10T70/50; Y10T70/5093
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US147090A
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GB189317923A
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US1549037A
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US1620958A
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US1943693A
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US2070114A
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US2187639A
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US2234712A
Cited
US2233315A
Cited
US2244012A
Cited
US2239242A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1956-03-16 | 1956-09-15 | 1957-03-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-03-16 | 1960-09-15 | 1961-03-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-03-16 | 1964-09-15 | 1965-03-17 | $7700.00 | Window Closed / Lapsed |