Patent US3445546A successfully refreshed from Google Patents.
US2213630A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Socketed cap screw and method of producing same
Assignee: SPS Technologies LLC
•
Filing: 1938-04-14
•
Granted: 1940-09-03
•
Expires: 1958-04-14
Abstract
No abstract record available.
Inventors
- 👤 Harald F Gade
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 21:41
CPC Classifications
F; F16; F16B; F16B35/00; B; B21; B21K; B21K1/00; B21K1/44; B21K1/46; B21K1/463; Y; Y10; Y10S; Y10S411/00; Y10S411/919
Claims Analysis
Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1943-09-03 | 1944-03-04 | 1944-09-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1947-09-03 | 1948-03-04 | 1948-09-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1951-09-03 | 1952-03-04 | 1952-09-03 | $7700.00 | Window Closed / Lapsed |