US2517480A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Key fastener
Assignee: Individual
•
Filing: 1949-05-16
•
Granted: 1950-08-01
•
Expires: 1969-05-16
Abstract
No abstract record available.
Inventors
- 👤 Gertrude A Hagan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:55
CPC Classifications
E; E05; E05B; E05B13/00; E05B13/04; Y; Y10; Y10T; Y10T70/00; Y10T70/70; Y10T70/7441; Y10T70/7915; Y10T70/7989
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US269468A
Cited
US598229A
Cited
US718273A
Cited
US763793A
Cited
US1452646A
Cited
GB279335A
Cited
US2042891A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1953-07-31 | 1954-01-30 | 1954-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1957-07-31 | 1958-01-30 | 1958-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1961-07-31 | 1962-01-30 | 1962-08-01 | $7700.00 | Window Closed / Lapsed |