US2509293A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Film hanger with tapering sides
Assignee: DOROTHY L FRIEDMAN
•
Filing: 1947-05-31
•
Granted: 1950-05-30
•
Expires: 1967-05-31
Abstract
No abstract record available.
Inventors
- 👤 Friedman Jack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:46
CPC Classifications
G; G03; G03D; G03D13/00; G03D13/02; G03D13/08; G03D13/12; Y; Y10; Y10T; Y10T24/00; Y10T24/20; Y10T24/202; Y10T24/203; Y10T24/204; Y10T24/44; Y10T24/44291; Y10T24/44496; Y10T24/44513; Y10T24/44521; Y10T24/44564; Y10T24/46; Y10T24/4604; Y10T24/463; Y10T24/4664
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US617335A
Cited
US1141314A
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US1237562A
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US1955575A
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US2299779A
Cited
US2352601A
Cited
US2370434A
Cited
US2445496A
Cited
US2436882A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-05-29 | 1953-11-28 | 1954-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-05-29 | 1957-11-28 | 1958-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-05-29 | 1961-11-28 | 1962-05-30 | $7700.00 | Window Closed / Lapsed |