US2968504A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Retaining spring fastener
Assignee: Individual
•
Filing: 1957-04-03
•
Granted: 1961-01-17
•
Expires: 1977-04-03
Abstract
No abstract record available.
Inventors
- 👤 Wray C Hansen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 15:25
CPC Classifications
G; G05; G05G; G05G1/00; G05G1/08; G05G1/10; G05G1/12; F; F16; F16B; F16B2200/00; F16B2200/10; Y; Y10; Y10S; Y10S411/00; Y10S411/918; Y10T; Y10T403/00; Y10T403/70; Y10T403/7018; Y10T403/7021; Y10T403/7022
Claims Analysis
Total Claims: 0
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References Cited (Backward Citations)
US2080361A
Cited
US2745689A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-01-17 | 1964-07-18 | 1965-01-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-01-17 | 1968-07-18 | 1969-01-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-01-17 | 1972-07-18 | 1973-01-17 | $7700.00 | Window Closed / Lapsed |