Patent US2621386A successfully refreshed from Google Patents.
US2621386A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Separable pin fastener
Assignee: —
•
Filing: —
•
Granted: 1952-12-16
•
Expires: 1969-12-16
Abstract
No abstract record available.
Inventors
No inventors recorded.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 18:47
CPC Classifications
A; A44; A44B; A44B1/00; A44B1/18; A44B1/28; A44B1/34; A44B9/00; A44B9/02; A44B9/10; Y; Y10; Y10T; Y10T24/00; Y10T24/19; Y10T24/1972; Y10T24/46; Y10T24/4604; Y10T24/4605; Y10T24/4609; Y10T24/4611; Y10T24/4614
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US404284A
Cited
US561893A
Cited
US818530A
Cited
US1471570A
Cited
US1472681A
Cited
DE463551C
Cited
US2123935A
Cited
US2130826A
Cited
US2402925A
Cited
US2320947A
Cited
US2354638A
Cited
US2356310A
Cited
US2429069A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1955-12-16 | 1956-06-16 | 1956-12-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1959-12-16 | 1960-06-16 | 1960-12-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1963-12-16 | 1964-06-16 | 1964-12-16 | $7700.00 | Window Closed / Lapsed |