US2163134A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fastening device
Assignee: Individual
•
Filing: 1937-03-20
•
Granted: 1939-06-20
•
Expires: 1957-03-20
Abstract
No abstract record available.
Inventors
- 👤 Walter A Semion
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:26
CPC Classifications
F; F16; F16B; F16B39/00; F16B39/22; F16B39/28; F16B21/00; F16B21/10; F16B21/16; F16B21/18; F16B21/186; F16B35/00; F16B35/04; F16B35/041; F16B35/044; F16B5/00; F16B5/02; F16B5/0208; Y; Y10; Y10S; Y10S411/00; Y10S411/924; Y10S411/925; Y10S411/929; Y10S411/955; Y10S411/965; Y10S411/971
Claims Analysis
Total Claims: 0
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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) | 1942-06-19 | 1942-12-19 | 1943-06-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1946-06-19 | 1946-12-19 | 1947-06-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1950-06-19 | 1950-12-19 | 1951-06-20 | $7700.00 | Window Closed / Lapsed |