US3318355A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Positive lock fastener
Assignee: Individual
•
Filing: 1964-09-02
•
Granted: 1967-05-09
•
Expires: 1984-09-02
Abstract
No abstract record available.
Inventors
- 👤 Francis D Dwyer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 17:10
CPC Classifications
F; F16; F16B; F16B39/00; F16B39/02; F16B39/10; Y; Y10; Y10S; Y10S411/00; Y10S411/924; Y10S411/926; Y10S411/955; Y10S411/965; Y10S411/969; Y10S411/998; Y10T; Y10T29/00; Y10T29/49; Y10T29/4981
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
129 words
IN A FASTENER DEVICE, THE COMBINATION INCLUDING A BODY HAVING A GENERALLY CIRCULAR CAVITY OF AXIAL EXTENT, SAID BODY HAVING A RADIALLY DISPOSED OPENING IN THE WALL THEREOF SURROUNDING SAID CAVITY, A SHEET MEMBER HAVING A CENTRAL PERFORATION AND HAVING A CIRCULAR OUTER PERIPHERY, SAID SHEET MEMBER BEING DISPOSED CONCENTRICALLY IN SAID CAVITY AND OCCUPYING A PLANE SUBSTANTIALLY NORMAL TO THE AXIS OF SAID CAVITY, RETAINER MEANS SECURED TO SAID SHEET MEMBER AND PROJECTING RADIALLY BEYOND THE OUTER PERIPHERY THEREOF, AND MEANS OF SAID BODY ENGAGING SAID RETAINER MEANS TO ATTACH SAID SHEET MEMBER TO SAID BODY, SAID RETAINER MEANS BEING FLIMSY IN RELATION TO SAID SHEET MEMBER WHEREBY A PERIPHERAL PORTION OF SAID SHEET MEMBER MAY BE SWAGED INTO SAID OPENING WITH INAPPRECIABLE RESISTANCE FROM SAID RETAINER MEANS.
Claim 2
Dependent Claim
129 words
IN A FASTENER DEVICE, THE COMBINATION INCLUDING A BODY HAVING A GENERALLY CIRCULAR CAVITY OF AXIAL EXTENT, SAID BODY HAVING A RADIALLY DISPOSED OPENING IN THE WALL THEREOF SURROUNDING SAID CAVITY, A SHEET MEMBER HAVING A CENTRAL PERFORATION AND HAVING A CIRCULAR OUTER PERIPHERY, SAID SHEET MEMBER BEING DISPOSED CONCENTRICALLY IN SAID CAVITY AND OCCUPYING A PLANE SUBSTANTIALLY NORMAL TO THE AXIS OF SAID CAVITY, RETAINER MEANS SECURED TO SAID SHEET MEMBER AND PROJECTING RADIALLY BEYOND THE OUTER PERIPHERY THEREOF, AND MEANS OF SAID BODY ENGAGING SAID RETAINER MEANS TO ATTACH SAID SHEET MEMBER TO SAID BODY, SAID RETAINER MEANS BEING FLIMSY IN RELATION TO SAID SHEET MEMBER WHEREBY A PERIPHERAL PORTION OF SAID SHEET MEMBER MAY BE SWAGED INTO SAID OPENING WITH INAPPRECIABLE RESISTANCE FROM SAID RETAINER MEANS.
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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) | 1970-05-08 | 1970-11-07 | 1971-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-05-08 | 1974-11-07 | 1975-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-05-08 | 1978-11-07 | 1979-05-09 | $7700.00 | Window Closed / Lapsed |