Patent US2448637A successfully refreshed from Google Patents.
US2448637A
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Drapery hook
Assignee: ETHEL SWANSON
•
Filing: 1944-06-23
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Granted: 1948-09-07
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Expires: 1964-06-23
Abstract
No abstract record available.
Inventors
- 👤 Eva C Swanson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 18:15
CPC Classifications
A; A47; A47H; A47H13/00; A47H13/04; Y; Y10; Y10T; Y10T24/00; Y10T24/34; Y10T24/3467; Y10T24/3476; Y10T24/3477; Y10T24/3479; Y10T24/46; Y10T24/4604; Y10T24/4605; Y10T24/4664; Y10T24/4668; Y10T24/467
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US277318A
Cited
US1544303A
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US1589228A
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US1820997A
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US1861342A
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US2106438A
Cited
US2147910A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1951-09-07 | 1952-03-08 | 1952-09-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1955-09-07 | 1956-03-08 | 1956-09-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1959-09-07 | 1960-03-08 | 1960-09-07 | $7700.00 | Window Closed / Lapsed |