Patent US4483030A successfully refreshed from Google Patents.
Patent US2521885A successfully refreshed from Google Patents.
US2521885A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Magnetic retainer
Assignee: Individual
•
Filing: 1947-02-26
•
Granted: 1950-09-12
•
Expires: 1967-02-26
Abstract
No abstract record available.
Inventors
- 👤 John G Vasquez
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 11:29
CPC Classifications
E; E05; E05C; E05C19/00; E05C19/16; Y; Y10; Y10S; Y10S211/00; Y10S211/01; Y10T; Y10T24/00; Y10T24/32; Y10T292/00; Y10T292/11
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-09-11 | 1954-03-13 | 1954-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-09-11 | 1958-03-13 | 1958-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-09-11 | 1962-03-13 | 1962-09-12 | $7700.00 | Window Closed / Lapsed |