Patent US2498909A successfully refreshed from Google Patents.
US2498909A
Expired / Lapsed
US
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End cap for venetian blind slats
Assignee: Detroit Macoid Corp
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Filing: 1945-07-23
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Granted: 1950-02-28
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Expires: 1965-07-23
Abstract
No abstract record available.
Inventors
- 👤 Bradley Stephen Duncan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 20:09
CPC Classifications
E; E06; E06B; E06B9/00; E06B9/24; E06B9/26; E06B9/38; E06B9/386
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US586828A
Cited
US1085799A
Cited
US1169123A
Cited
US1218244A
Cited
US1556966A
Cited
US2280931A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-02-27 | 1953-08-29 | 1954-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-02-27 | 1957-08-29 | 1958-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-02-27 | 1961-08-29 | 1962-02-28 | $7700.00 | Window Closed / Lapsed |