US2920407A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Releasable device for article retention
Assignee: Individual
•
Filing: 1958-11-07
•
Granted: 1960-01-12
•
Expires: 1978-11-07
Abstract
No abstract record available.
Inventors
- 👤 Paul W Stathem
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 11:12
CPC Classifications
G; G09; G09F; G09F1/00; G09F1/10; B; B42; B42F; B42F15/00; B42F15/06; B42F15/066; F; F16; F16B; F16B2/00; F16B2/005; F16B2/02; F16B2/14; G09F15/00; G09F15/0006; G09F15/0018; Y; Y10; Y10T; Y10T24/00; Y10T24/44; Y10T24/44573; Y10T24/44607
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2530821A
Cited
US2755585A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1963-01-11 | 1963-07-13 | 1964-01-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1967-01-11 | 1967-07-13 | 1968-01-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1971-01-11 | 1971-07-13 | 1972-01-12 | $7700.00 | Window Closed / Lapsed |