US2517476A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cap screw
Assignee: Individual
•
Filing: 1945-07-09
•
Granted: 1950-08-01
•
Expires: 1965-07-09
Abstract
No abstract record available.
Inventors
- 👤 Frank E Frost
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 04:22
CPC Classifications
F; F16; F16B; F16B39/00; F16B39/22; F16B39/28; Y; Y10; Y10S; Y10S411/00; Y10S411/955; Y10S411/956; Y10S411/96
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
US839235A
Cited
GB191005209A
Cited
US1049590A
Cited
US1406423A
Cited
GB276786A
Cited
US1896388A
Cited
US1956745A
Cited
US2217951A
Cited
US2229892A
Cited
US2226491A
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 |