US2816790A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic work hanger
Assignee: Individual
•
Filing: 1954-11-22
•
Granted: 1957-12-17
•
Expires: 1974-11-22
Abstract
No abstract record available.
Inventors
- 👤 Claude H Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 05:08
CPC Classifications
H; H01; H01F; H01F7/00; H01F7/02; H01F7/0231; H01F7/0252; H01F7/0257; Y; Y10; Y10S; Y10S206/00; Y10S206/818; Y10S7/00; Y10S7/901
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US710041A
Cited
US1105552A
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US2099559A
Cited
US2414653A
Cited
US2461317A
Cited
US2491860A
Cited
US2642999A
Cited
US2565624A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1960-12-16 | 1961-06-17 | 1961-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1964-12-16 | 1965-06-17 | 1965-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1968-12-16 | 1969-06-17 | 1969-12-17 | $7700.00 | Window Closed / Lapsed |