US2477429A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Holder for fastener elements
Assignee: K A SWANSTROM
•
Filing: 1943-05-15
•
Granted: 1949-07-26
•
Expires: 1963-05-15
Abstract
No abstract record available.
Inventors
- 👤 Swanstrom Klas Arent
- 👤 Birger C Sandemar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:20
CPC Classifications
F; F16; F16B; F16B37/00; F16B37/04; F16B37/044; Y; Y10; Y10S; Y10S411/00; Y10S411/924; Y10S411/947; Y10S411/955; Y10S411/965; Y10S411/971
Claims Analysis
Total Claims: 0
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1952-07-25 | 1953-01-24 | 1953-07-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1956-07-25 | 1957-01-24 | 1957-07-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1960-07-25 | 1961-01-24 | 1961-07-26 | $7700.00 | Window Closed / Lapsed |